In this document, we offer a summary of the first two years of the Math 124/125 calculus reform project. We begin with a short review.
In the fall of 1997, Doug Lind, then Chair of the Mathematics Department,
formed an Ad Hoc Committee on Calculus to review the Math 124/5/6 calculus
sequence. The committee, chaired by Paul Goerss, presented a report to the
department in the spring of 1998. The report is attached as Appendix
D. It led to revision efforts on several fronts, including some changes
implemented the following year with departmental resources. These are outlined
in Appendix E, Two major changes involved courses
outside the traditional Math 124/5/6 calculus track: the reduction of class
size in business calculus Math 111/112 and the introduction of a life sciences
calculus course, Math 144/5/6. At the same time, we planned a revision of the
traditional calculus sequence, which resulted in the Tools for Transformation
(TFT) proposal that is attached as Appendix F. This
proposal to reform Math 124/5 was funded for a three-year period. It is coupled
with an agreement (see Appendix G) between the
Department and the
The academic year 2002-2003 was the second year of the three-year TFT project. We believe our reform efforts have been a success. As we will detail below, student and collegial assessments indicate that all components of the courses work well; two course components identified as needing further adjustment or assessment in our first year report have been successfully addressed. We find that the revised courses engage students, faculty and teaching assistants in a satisfying learning/teaching experience. Our model of reform features continuous improvement through ongoing student, teaching assistant and instructor feedback. We intend to maintain the positive trajectory of student satisfaction during the coming academic years.
The first five sections of this report will discuss how reform objectives were met during the second year and how problem areas identified in the first year were successfully addressed in the second year. We will present both OEA and CIDR assessment data. We have continued to use a specially designed supplementary survey in conjunction with the usual student evaluation forms; this eleven question survey was developed in consultation with OEA in Autumn 2001. The OEA survey data was gathered at the end of each quarter. In addition, Karen Freisem, a CIDR member with substantial experience in working with Mathematics faculty and TAs, has continued to carry out mid-quarter surveys. These Small Group Interactive Diagnostic surveys (SGIDs) were based on facilitated discussions with all Math 124/5 classes taught during the 2001-02 and 2002-03 academic years (see Appendix C). The statements we make below are based on the data collected through these surveys. We will often refer to specific survey questions to make this clear. The OEA data may be found in Appendix A and Appendix B. Don Marshall, chair of our Math Services Committee, gathered client department feedback on our course offerings. We will summarize in section 3 the feedback obtained on calculus revision. In section 6, we will look towards the future.
We discuss each of the four key objectives listed in our TFT proposal as a separate item.
This objective refers to the learning of calculus skills, manipulative skills, problem-solving skills, reasoning skills, and an overall vision of the usefulness of calculus as a tool in the modern world. Ideally, we would like our students to master all of these. We are also aware of the need to strike a balance between computational skills and modeling skills. (The history of calculus teaching in our department, and in the nation generally, has been that, after teaching a computation-oriented sequence for many years, we shifted to a modeling-oriented mode in the late 1980s. These experiences with the two "extremes" led to the current realization of the need for a compromise between the two competing demands.)
We have adopted a traditional textbook that emphasizes computational skills. Both students and instructors now feel that computational needs are being adequately covered. Student satisfaction with the textbook was high during the first two years of reform - see Questions #8 and 9 in Tables A1-A6 of Appendix A. Given these levels of satisfaction, we will continue to use the same text for the next few years.
Problem-solving skills are highly valued by client departments. Two components of our reform effort, worksheets and supplementary homework problems, target problem-solving skills, as well as reasoning skills and a vision of calculus usefulness. We now comment in detail on these two components, which were identified in our first year report as being in need of further work.
Worksheets. Each week the students meet for 80 minutes with a TA in a section of 27 and work through a carefully choreographed discovery-based worksheet. The main goal is to introduce a key problem or idea from the course, and to allow the students to work on it in groups of 3-5 for an extended period of time. This use of active learning is not a new idea in calculus instruction, but it is the first time our department has attempted to integrate it into the calculus curriculum. As we described in our earlier report, students came away last year with mixed feelings as to the usefulness of worksheets in learning calculus. We addressed this during 2002-03 by implementing the following.
a) Improved TA training was instituted for worksheets. Each TA attended a weekly "worksheet workshop" specific to the course when they first taught the revised version of either course. The purpose of the workshop was to identify potential problem areas for the students and to agree upon a uniform message to be delivered to the students regarding the "point of the worksheet". Three tenured faculty members who were acting as course TAs voluntarily attended the workshops; we point to this as an indicator of the seriousness with which a wide spectrum of faculty view calculus instruction. This new training component was a success. We will continue it in the future; one of the three tenured faculty members who attended the sessions gladly agreed to run the Math 124 workshops during the 2003-04 academic year.
b) We instituted a level of uniformity by ensuring that, in any given week, every student was working on the same worksheet. We settled on a worksheet for each week of the course, instead of offering options. We enlisted two experienced TAs to work with the course coordinators during Summer 2002 to improve the worksheets. Improvements were guided by instructor and TA feedback we had obtained during the first year of the project. One additional component was to create a full "solution" for each worksheet, which was made available to the students after their TA section as a model of a good correct solution. Weekly instructor meetings and the TA worksheet workshops were used to coordinate the effort across the sections. This "uniformity" was a success and will continue in the future, although we envision that new worksheets will regularly cycle into the curriculum as older ones are retired.
c) All instructors agreed to make participation in worksheets a benefit to the student, as far as their grade was concerned. In most cases, attendance and participation guaranteed full credit for the worksheet; a few instructors collected and graded the worksheets. This change seems to have reinforced the significance of the worksheets and will be maintained in the future.
Based on supplementary survey data, we believe that implementing (a)-(c) was a successful response to the issues we identified in the first year regarding the worksheets. Keeping in mind that Question #10 on the 2002-03 supplementary survey corresponds to Question #11 on the 2001-02 supplementary survey, the following comparisons provide a measure of the impact of (a) - (c).
Question #10 Table A1 (2002-2003 Math 124/5) vs. Question #11 Table A2 (2001-2002 Math 124/5)
Question #10 Table A3 (2002-2003 Math 124) vs. Question #11 Table A4 (2001-2002 Math 124)
Question #10 Table A5 (2002-2003 Math 125) vs. Question #11 Table A6 (2001-2002 Math 125)
In addition, feedback obtained during SGIDs held during 2002-03 (see Table C ) reveal that students now view worksheets as a positive component of the course. This was not a unanimously held view, but it was the view of a the majority of the students. Total unanimity on this point is probably impossible to attain.Homework. In order to help our students push their envelopes of understanding, a typical homework assignment consists of selected textbook problems and a number of supplementary homework problems. For example, here is a link to the sixth homework assignment in Math 124: homework 6.
During the first year of the project, we discovered a large variation in students' perception of the supplementary homework. In fact, Question #10 (Table A2) for 2001-02 displays the largest variation and lowest median among all survey questions. Two opposing viewpoints on supplementary homework emerged in SGIDs carried out in the first year. Supplementary problems make up the most challenging component of the courses. Some students would be happy to see them go away. However, one could argue that forcing students to push their envelopes of understanding on these problems is precisely why, in the end, they have a better understanding of calculus. In any case, we want them to feel that this is a useful component. To achieve this, we implemented two changes in the second year of the project:
a) A cosmetic change, which some instructors felt was important, was to no longer use the terms "textbook homework" and "supplemental homework". As illustrated by the above example of Math 124 homework 6, each homework set now consists of a single handout listing textbook problems and the problems designed by us.
b) Course coordinators made an effort to discuss with the instructors the issue of student expectations and how to align student expectations with those of instructors by making it clear that all of the homework is important. The common final exam will also be used to motivate students in the future. We will clearly inform the students, from the beginning of the quarter, that multi-step problem solving is a central part of the training provided by the course and that questions testing this skill will be included on the final exam. This philosophy is additionally documented in a handout given to students on the first day of the quarter (see Appendix I).
We feel these changes were successful. The relevant assessment data to compare would be:Question #9 Table A1 (2002-2003 Math 124/5) vs. Questions #9 and 10 Table A2 (2001-2002 Math 124/5)
Question #9 Table A3 (2002-2003 Math 124) vs. Question #9 and 10 Table A4 (2001-2002 Math 124)
Question #9 Table A5 (2002-2003 Math 125) vs. Question #9 and 10 Table A6 (2001-2002 Math 125)
Pass Rates. As a final point related to student learning, we include a comparison of student "pass rates" between the last academic year prior to the implementation of any changes, 1997-98, and 2001-02, 2002-03.
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Math 124/125 Pass Rate Comparison |
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|
Course |
1997-98* |
2001-02* |
2002-03* |
|
Math 124 |
81% (=1375/1693) |
88% (=1590/1801) |
87% (=1538/1758) |
|
Math 125 |
82% (=1048/1281) |
85% (=1405/1662) |
87% (=1377/1590) |
* Pass Rate is
defined to mean the number of students with a grade of 2.0 or higher, the
Mathematics Department
requirement for progression into the successor course, Math 125 or Math 126.
Fractional numbers in parenthesis
indicate (# students with grade 2.0 or higher) / (# students with a grade
between 0.0 and 4.0).
Combined total numbers are for Autumn, Winter and Spring of a given academic
year; counts from Summer are omitted
due to the different nature of Summer class sizes and staffing.
We attempted to measure this core objective through the following: learning, student involvement, student commitment, and alignment of expectations.
Learning. We will highlight several key items below. In the aggregate, we believe they continue to point to a sustainable upward trend in student satisfaction with learning in Math 124 and Math 125.
Student complaints. During the 2002-2003 academic year our Student Services Office fielded no complaints regarding Math 124/5. To our knowledge, complaints at the College and University level did not occur either. We had a similar experience in 2001-02, when we received only one complaint. We intend this to be the beginning of a long tradition of satisfaction among our calculus students.
Student evaluations. We have tabulated below a comparison of the course evaluation data for Math 124 between 1997-98, the last academic year prior to the implementation of any changes, and the first two years of the TFT project. We focus on questions 1,3,4 and 18. Question 2 is omitted as it varies with the type of evaluation form used. The scoring system runs from 5=Excellent to 0=Very Poor.
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Math 124 Student Evaluation Comparison |
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|
Question |
1997-98* |
2001-02* |
2002-03* |
|
1. The course as a whole was: |
3.6 |
3.9 |
3.9 |
|
3. The instructors contribution to the course was: |
3.8 |
4.1 |
4.2 |
|
4.The instructor's effectiveness in teaching the subject matter was: |
3.7 |
4.0 |
4.1 |
|
18. The amount you learned in the course was: |
3.1 |
3.3 |
3.6 |
* The numbers for
questions 1,3 and 4 are adjusted scores; the numbers for question 18 are
unadjusted. The numbers given are weighted averages (using the count of
students who turned in evaluation forms) of OEA data.
Student testimonials. Many routinely receive verbal kudos for their individual course experiences. It is always nice when a student takes the additional time to formalize this in writing. In Appendix J, we include two examples of unsolicited messages from students.
Supplementary questions. Responses to Question #11 in Tables A1, A3 and A5 support the view that students are satisfied; this corresponds to Question #12 in Tables A2, A4 and A6 for the 2001-02 academic year. We again point to the results of Question #7 as further evidence of satisfaction with the revised courses.
Math 126 survey. In Spring 2002 and during the 2002-03 academic year, we surveyed all Math 126 students who had taken one or both of Math 124 and Math 125 under the revised format. The questions and results are in Appendix B. Recall that the format of Math 126 has not been revised: It is taught in lecture classes of size 160 students. The quiz sections are of size 40, and use a 50-minute period for each of the two weekly meetings. The responses to this survey indicate that students find that the smaller lecture and quiz section sizes in the revised Math 124/5 contribute to their learning. (The revised courses are taught in lecture sections of 80 and quiz sections of 27 students.) The additional time spent on worksheets is not clearly viewed as a benefit. This is quite interesting, since all course instructors who have acted as TA's single it out as the best part of the course. We will continue to refine our worksheets through instructor and student input and keep track of this perception among Math 126 students. We should point out a significant benefit of the 80-minute TA section: Both midterm exams were given during the 80-minute TA section, and this eliminated student complaints and concerns about time pressure. We are certain that students respond highly favorably to having more time on midterm exams; they probably thought more in terms of the worksheets when answering the survey question.
SGIDs. The results (Appendix C) of the SGIDs, as summarized by Karen Freisem, support our opinion that students were engaged in the courses and taking an active role in learning the material.
Web Resources. As we discovered during the first year, students find course web resources very useful. For each course, all course materials (aside from the text) are available online, along with an archive of old quizzes and exams. The web organization of the course can be gleaned by visiting the Math 124 homepage at http://www.math.washington.edu/~m124/ or the Math 125 homepage at http://www.math.washington.edu/~m125/ . For example, on the Math 124 homepage, the grid organizes the course by week, highlighting the syllabus (right-hand column), old archived exams (middle columns) and detailed weekly outlines (left-hand column). The weekly outline provides a student guide, and access to the worksheet and homework.
Student involvement. A central belief of our reforms is that smaller class sizes, in both lecture and quiz sections, will lead to an increase in communication and, in particular, to a larger number of question-answer exchanges. Questions #1,2,3 and 4 in Tables A1-A6 (both years) relate to this. We are happy with the ratings for these questions. The variance in Question #3 (Tables A1 and A3) does jump out and this is really a single outlier from one particular course instructor. This does point to one thing to keep in mind: with smaller class sizes, we teach more classes and the chances of more variance among ratings is inevitable.
Student initiative. We would like to see our students become committed to learning the subject. The survey results on supplementary Question #5 in Tables A1-A6 (both years) are satisfying to us.
Alignment of expectations. It is common for students to not fully understand the expectations placed upon them for success in a course. The results on Question #6 in Tables A1-A6 (both years) are very positive.
During the 2002-03 academic year, the department's Math Services Committee chaired by Don Marshall contacted 34 departments on campus with programs requiring math classes. They solicited input on both 100-level and 300-level courses. A detailed account of information gathered is contained in the report attached as Appendix L. In the comments on Math 124/5, we found a very high level of satisfaction with our current calculus sequence. The usefulness of the course websites was pointed out, which is something that surfaced during SGID feedback both last year and this year. It was particularly pleasing to read the comments from the chair of Aeronautic and Astronautics, who appreciated our effort to involve client departments as we created the vision for our reformed version of calculus, then followed up to see if the course was meeting client department needs. We view this as confirmation of the collegial and open manner in which we have tried to reform the calculus course, a collegiality both within the department and within the broader setting of the college and university.
Feedback from weekly instructor meetings continued to be very positive. Most instructors felt the smaller lecture class size was an improvement. Most TAs commented positively on the smaller quiz sections of size 27 students. Several faculty members, including Chris Hoffman, Doug Lind, Patrick Perkins, Paul Smith and John Sylvester, ran TA sections themselves this year and commented very favorably on their experiences. In fact, Doug Lind was so enthusiastic that he gladly agreed to take on the role of worksheet workshop coordinator for Math 124 during the upcoming academic year. All these comments point to a wonderful outcome of reform: A broader spectrum of faculty are now involved in calculus instruction and related ongoing course improvements.
One component of our reform proposal, the Community College Educator's Sabbatical Program (CCESP), envisioned bringing community college instructors to the UW during sabbatical leaves. These visitors would teach one calculus course per quarter, bringing their salary up to 100%. The dialog between the visitors and department members would benefit both parties. This component was a partial success during the first year of the TFT project, but we were unable to attract applicants for the second year. As suggested in our last report, long term stability of a supply of interested Community College faculty is in doubt. Two community college instructors, Debbie Nichol from Skagit County Community College and Rick Downs from South Seattle Community College, will participate in our program during 2003-04.
On a very positive note, we provide an email exchange in Appendix K between Ken Bube and Marina Morosova, a CCESP participant during 2001-02. This illustrates the contribution the program can make to communication between the UW and community college students, who may then become UW transfer students.
We propose to continue the Community College Educator's Sabbatical Program, taking advantage of it as the opportunity arises, but without counting on it as a permanent source of instruction. We will say more about this in the next section.
The revisions of 100-level courses carried out during the past five years have increased the number of sections the department teaches at this level by decreasing class size in courses such as Math 111, 112, 120, 124 and 125. Throughout this period, the department has benefited from a dialogue with the College. The TFT proposal and the accompanying Assessment Document describe how the cost of increase in teaching due to the revision of Math 124/5 would be shared between the department and the College, if the College chooses to make the changes permanent.
During the nearly three years since the TFT proposal was written, including nearly two years of operating all of the revised courses, real life has followed the proposal to a remarkable degree, though not totally. Having discussed the academic experience, the purpose of this section is to revisit our vision for permanence from the point of view of staffing and resources.
In addition to graduate students and faculty in the professorial ranks, the list of those who engage in teaching for the department includes lecturers, part-time lecturers, and visitors. We make part-time lecturers appointments to meet teaching needs, to fill in gaps that result from leaves and grant buyouts. Visitors who have faculty appointments at other institutions come here to collaborate with department faculty. Decisions on visitor and part-time lecturer appointments are made annually, taking into consideration both teaching and research needs. The department's recapture budget, among other sources, is used for this purpose. We propose to support CCESP by including it in this annual process. Our recapture budget includes, in addition to salary money recaptured from sabbatical leaves, grant money that is used for teaching replacement by tenure-track faculty. Given the size of the budget in recent years, we expect no difficulty in continuing the CCESP in this way.
The department has a number of lecturer positions. Each one serves a specific purpose. We wish to discuss positions dedicated to the teaching of 100-level courses. During recent years the teaching of Math 111/112/120 has been carried out mostly by lecturers, allowing faculty in the professorial ranks to concentrate on Math 124/125/126. This arrangement has worked well, resulting in increases in student ratings and a higher level of student satisfaction in all of our 100-level courses. The lecturers, as the principal instructors of Math 111/112/120, have engaged in curriculum development, TA training and coordination among different sections of the three courses. The lower demand we experience in Spring has allowed lecturers to teach Math 124/5/6 during that quarter. This is a welcome change in their teaching schedules. Moreover, it helps with the integration of the two sets of courses and provides valuable input on Math 124/5/6. We would like to continue all of these practices. We envision three such lecturer positions.
We would include lecturers in the teaching credit system of the department.
Each of the three lecturers would be expected to carry twice the average load,
which is currently between 3.2 and 3.3. We would increase the credit for Math
111/2 to 0.9, leaving Math 120/4/5/6 at 0.8. (We will say more about Math 111/2
below.) We would also give teaching credit of between 0.2 and 0.4, depending on
the course, for coordination of a 100-level course. Thus, seven sections of
Math 111/2 and coordination of one course would be about a full annual load for
a lecturer, as would eight sections of Math 120 and the coordination of one
course. In practice, each lecturer would do a combination of Math 111/2, other
100-level courses and course coordination. The teaching credit system would
make it easy to quantify different combinations, and to carry small
debits/credits from one year to the next. An annual course distribution of
The distribution the total number of sections of Math 111/112/120 over the
three quarters is
The kind of involvement we described, where the lecturer is integrated into the department and takes on tasks that extend beyond the teaching of the courses, is to the benefit of the department, the students and the faculty member himself/herself. This level of involvement and the stability we desire for our teaching at the 100-level can be attained through three-year lecturer appointments, but not through part-time lecturer appointments. The funds the College has reserved for permanent funding of the Math 124/125 revisions include $90,000 for salaries of two lecturers. The department has half a faculty line dedicated to this purpose. In addition, 0.5 months of salary is currently provided for coordination of each of Math 111, 112 and 120; adding these to the 4.5 months associated with the half position, we have six months of support. Thus, we are three months' salary, or about $15,000, short of three lecturer positions.
The TA funding that would be provided under the agreement is just right. TA worksheet workshops are a component of Math 124/5 revisions we did not anticipate in the TFT proposal. A small amount of teaching credit will be given for running the TA worksheet workshops, in recognition of the addition of this task to faculty responsibilities.
Instructors of Math 111/2 are presented with challenges that are specific to these courses. Backgrounds and needs of business students differ from those of the science and engineering students. Unlike our other 100-level courses, which every Math graduate student knows well, our TAs are not familiar with the business terminology used in the exercises for Math 111/2. Training of TAs for the business aspects of the courses becomes an additional component of the instructor's work. The hours of support the Math Study Center (MSC) provides for Math 111/2 is not at level of other 100-level courses. A group of lecturers experienced in teaching these courses is part of our response to these challenges. Ideally, each lecturer would be fully integrated into the department and remain here for a long time. Should one leave, however, the expertise can be transferred to a new instructor by other members of the group. Our plan for assigning 0.9 teaching credit recognizes the additional work involved in successful teaching of Math 111/2.
MSC help for Math 111/2 is only available for four hours in the afternoon, in an adjacent room. (As we discussed above, the MSC is fully utilized by Math 120/4/5/6 during peak hours.) The advantages of making more MSC hours available, in a location that is not physically separate, are clear. We should point out that there is a threshold above which many students start to think about the MSC as a place where help is available ``any time” and get into the habit of studying there. We hope that the College can work with us on finding ways of reaching that threshold in the case of Math 111/2.
Table A1: Math 124/5 Supplementary Questions Results, 2002-2003.
Based on 24 sections of Math 124 and 21 sections of Math 125;
all sections approximately size 80 students. Data gathered by OEA
in conjunction with end of quarter student evaluations.
(Key: labeled bar = median; box= 25% through 75% quartiles;
line = range of scores. Survey scores range from "7=strongly agree"
to "4=neutral" to "1=strongly disagree".)

Questions:
Table A2: Math 124/5 Supplementary Questions Results, 2001-2002.
Based on 21 sections of Math 124 and 13 sections of Math 125;
all sections approximately size 80 students. Data gathered by OEA
in conjunction with end of quarter student evaluations.
(Key: labeled bar = median; box= 25% through 75% quartiles;
line = range of scores. Survey scores range from "7=strongly agree"
to "4=neutral" to "1=strongly disagree".)

Questions:
Table A3: Math 124 Supplementary Questions Results, 2002-2003.
Based on 24 sections of Math 124;
all sections approximately size 80 students. Data gathered by OEA
in conjunction with end of quarter student evaluations.
(Key: labeled bar = median; box= 25% through 75% quartiles;
line = range of scores. Survey scores range from "7=strongly agree"
to "4=neutral" to "1=strongly disagree".)

Questions:
Table A4: Math 124 Supplementary Questions Results, 2001-2002.
Based on 21 sections of Math 124;
all sections approximately size 80 students.
Data gathered by OEA in conjunction with end of quarter student evaluations.
(Key: labeled bar = median; box= 25% through 75% quartiles;
line = range of scores. Survey scores range from
"7=strongly agree" to "4=neutral" to "1=strongly disagree".)

Questions:
Table A5: Math 125 Supplementary Questions Results, 2002-2003.
Based on 21 sections of Math 125;
all sections approximately size 80 students. Data gathered by OEA
in conjunction with end of quarter student evaluations.
(Key: labeled bar = median; box= 25% through 75% quartiles;
line = range of scores. Survey scores range from "7=strongly agree"
to "4=neutral" to "1=strongly disagree".)

Questions:
Table A6: Math 125 Supplementary Questions Results, 2001-2002.
Based on 13 sections of Math 125;
all sections approximately size 80 students. Data gathered by
OEA in conjunction with end of quarter student evaluations.
(Key: labeled bar = median; box= 25% through 75% quartiles;
line = range of scores. Survey scores range
from "7=strongly agree" to "4=neutral" to "1=strongly disagree".)

Questions:
Questions:
Table B1: Math 126 Supplementary
Questions Result, Year 2002-03.
Based on 10 sections of Math 126;
all sections approximately size 140 students.
Data gathered by OEA in conjunction with end
of quarter student evaluations.
(Key: labeled bar = median; line = range of scores.
Survey scores range from "7=strongly agree" to
"4=neutral" to "1=strongly disagree".)

Table B2: Math 126 Supplementary
Questions Result, Spring 2002.
Based on 3 sections of Math 126;
all sections approximately size 140 students.
Data gathered by OEA in conjunction with end
of quarter student evaluations.
(Key: labeled bar = median; line = range of scores.
Survey scores range from "7=strongly agree" to
"4=neutral" to "1=strongly disagree".)

Autumn 2001 SGID summary
Winter 2002 SGID summary
Spring 2002 SGID summary
Autumn 2002 SGID summary
Winter 2003 SGID summary
Spring 2003 SGID summary
A listing of the numbers of sections and students involved in SGID surveys is located here.
In the fall of 1997, Doug Lind, Chair of the Mathematics Department, formed
an Ad Hoc Committee on Calculus to review the Math 124/5/6 sequence and to
recommend ways to improve calculus instruction. The other versions of calculus
taught by this department (Math 111/2 and Math 134/5/6) are not part of this
review. The committee consisted of Paul Goerss (Chair), Ken Bube, Ramesh
Gangolli, and Don Marshall.
After a transition period in the early 1990s, this department began teaching
the main calculus sequence for first-year student using locally produced
materials, sometimes supplemented by paperback workbooks. As this system has
been in place for sometime it was time for a review of the Math 124/5/6. The
questions before the committee included:
1. Summary of results of interviews
In deciding who to talk with about our calculus program, we began by making a
list of who took Math 124 and what majors they eventually graduated with. Then
we looked at the departments and programs with large representation. Some, such
as English and Music, simply reflected the fact that these are popular majors.
Discarding these, we talked with members of the following departments, offices,
and programs.
a. Physical Sciences
In Chemistry we talked with Professors Mike Heinecky and Leon Slutsky. The
former is chairman of the undergraduate program committee, the latter a physical
chemist. Surprisingly, chemistry in general uses little calculus. Physical
chemistry uses a great deal, often couched in notation we would find vague and
confusing. Professor Slutsky concluded that the best service we can supply these
students is training in mathematical sophistication. The chemistry department in
general is deeply aware of the great range of students on this campus, and
strongly supports the efforts of this department to teach sophisticated
first-year courses. Professor Heinecky did mention the Mathematics Study Center,
calling it a ``class operation'' and mentioning that Chemistry had adopted the
model for its own study center.
From Physics we received a report from a committee consisting of Professors
Oscar Vilches (Undergraduate Program Director), Vic Cook, Steve Ellis, and
Stamatis Vokos. They need a lot of calculus, often earlier than we can possibly
supply it, but in general they were not dissatisfied. They would definitely like
vectors introduced earlier, and would certainly not like to see
multi-dimensional material moved from the first to the second year. In general,
they were supportive of the idea of introducing mathematical concepts in the
context of applications, as they hope their students will be adept at this
skill.
b. Engineering
Perhaps our most illuminating interview was with Professors Uy-Loi Ly and
Adam Bruckner of Aeronautics and Astronautics. Professor Bruckner is the
Undergraduate Program Advisor for that department. The meeting began with
criticisms of calculus. Professor Ly felt the students were deficient in various
routine skills, and Professor Bruckner was critical of what might be called
standard, old-fashioned calculus courses. Upon examining the Koblitz notes,
however, they ended by praising what we were trying to do with the emphasis on
word problems, applications, and modeling. This experience emphasized to us the
value of communication with other departments - by the end we had their sympathy
and support. We did, however, continue to hear lurid tales about the inability
of many students to do even basic differentiation and integration.
We also talked with Professors Per Reinhall and Duane Storti from Mechanical
Engineering. Reinhall is the chair and Storti a member of the committee that
oversees the second year introductory engineering courses. They also underscored
the importance of problem solving skills.
An examination of the second-year engineering texts was very illuminating.
From the very start, the students are asked to do calculus in the setting of
concrete applications - in particular, they must be conversant with the language
of vectors. If the books are any guide, these courses are quite difficult.
From Computer Science and Electrical Engineering, we had an extensive e-mail
communication from Professor Paul Beame. Their concerns were more with various
kinds of discrete math.
At about the same time, Jim Morrow talked with Professor Jim Reilly, chairman
of Mechanical Engineering, who had some scathing criticisms of the calculus
course we taught ten years ago (and which he thought we still teach), and of the
differential equations course we now teach. He said, among other things, that
differential equations should be taught by the people who use them. Indeed, from
all the engineers we got the sense that our Math 307/8/9 sequence could use a
thorough revamping. In light of a national trend for engineering schools to
absorb these classes into themselves, it behooves us to pay attention to this
warning.
Finally, we talked with Dave Prince of the Minority Students in Engineering
Program. Deeply aware of the needs of his students in the second year
engineering courses, he is very supportive of the emphasis of word problems and
applications. In general he is very supportive of the emphasis and direction of
our current notes. However, his students find our current course materials
difficult, or even impossible, and Dave has written an extensive supplement of
his own for their use.
c. Life and Behavioral Sciences
On different occasions we met with Professors Johnny Palka, Tom Daniel, and
Gary Odell of Biology, and Professor Mark Cooper, chair of the Zoology
undergraduate program committee. While no concrete proposals were made, the
first three seemed to agree that a two-quarter calculus sequence emphasizing
biological examples and including some multi-variable techniques would sit very
well with their students. They also agreed that such a course would be mostly to
make the students happier, and not necessarily make them better biology
students. Mark Cooper seconded this last thought, and it was from him that we
had a warning about not diluting fundamentals. All four were pleased we talked
with them and would welcome further dialogue.
From Biology, we also talked with Joyce Fagel, head undergraduate advisor.
While very polite, she was highly sceptical of our current calculus, as she
perceives a high failure rate among otherwise good students. (We have a hearsay
report that Dean Hunt, of the medical school, has expressed a similar sentiment:
too many otherwise good students are derailed by calculus.) She has warm things
to say about the QSci 291/2 sequence. We also talked with Jay Johnson, Professor
of Wood and Paper Science, who teaches that sequence. It was from him, among
others (see part d. below), that we heard the idea we are regarded, on campus,
as being unresponsive by not addressing the needs of life science students.
We talked with Professors Beth Kerr (Vice Chair) and John Miyamoto (head of
the quantitative group) of Psychology. Their requirements are difficult to
summarize and even more difficult to fulfill. A large proportion of their
students enter the university thinking they will be business majors; thus, for
better or worse, they accept Math 111/2. What they really need is some mixture
of statistics, probability, and linear algebra.
At a later date we also talked with Bus Hunt, professor and a former chair of
the psychology department. He offered his expertise in developing placement and
gateway tests.
d. The Drop Policy Committee
During this process, Paul Goerss and Brooke Miller were asked to meet with
the University's Oversight Committee on Student Services and Administrative
Changes, known as the Drop Policy Committee for short. We were asked a number of
questions about our drop rates (which do not deviate much from the national
norm), why we don't teach in small classes, what we were doing in response to
administrative changes, and so on. We were invited to make a radical proposal to
improve our classes in general and our calculus courses in particular. However,
a significant portion of the meeting dwelt on the question of why we don't offer
some calculus course more appropriate to life and behavioral sciences. Even
members of the committee, such as Jerry Gilmore, the director of the Office of
Education Assessment, who were sympathetic to strains on our program, wondered
why we were tardy in doing this. Among the committee members were Jay Johnson,
who waved away the idea that there might be some conflict of priorities with the
QSci program, and an undergraduate, a biology major, who was openly hostile to
our department. She was, not to put to fine a point on it, sarcastic,
patronizing, and rude. If she reflects the general opinion of our department
among biology students, we have trouble.
e. Debra Friedman and Fred Campbell
Of the University's top level administrators, these are the two most
concerned with undergraduate teaching. Debra Friedman is the Associate Provost
for Academic Planning and Fred Campbell is the Dean of Undergraduate Education
and Vice Provost. We met with them separately, but both meetings began with the
assertion that Campbell's office gets more complaints about first-year math
courses than all other entry-level courses combined. Feeling that a systematic
review of these complaints would be valuable to the work of this committee, we
asked to see them, but Campbell said he doesn't actually keep them on file after
he deals with them and that, in fact, many were not written. (There are only two
in Doug Lind's files.) Nonetheless, Campbell and Friedman were happy to
summarize the substance. The salient points, according to them, were these: 1.)
the calculus courses we teach are too different from what students expect and
the students often misjudge how prepared they are; 2.) students with good
credentials often do badly; 3.) the math faculty is not respectful of the
students - in particular, we are not interested in student success; 4.) math
courses are as much a ``screen'' as an intellectual endeavor; 5.) the approach
is objectionable - specifically, students complain about the huge leap in
difficulty, the lack of a text book, the difference between exams and class, the
lack of easier problems building to the hard ones, and the large lecture/quiz
section format; and 6.) old study habits no longer work. Many of these
complaints, whatever their source, could be addressed by better screening the
students and better informing them of what to expect. Both Campbell and Friedman
underscored the importance of this, and both offered resources to make it work.
Fred Campbell specifically mentioned that we could change the placement tests
and if we needed the approval of the HEC board, he could arrange it. Campbell
strongly suggested we think about other kinds of calculus. Both Friedman and
Campbell solicited a radical proposal from us, one that ``takes some risks and
allows for experimentation.'' They suggested that the President and the Provost
would look favorably upon such a proposal. Both also invited us to work with
them. The influence of these two administrators is enormous, and an effective
partnership with them or their successors could yield enormous benefits.
f. Mathematics
In the fall we solicited the comments of the faculty of the math department.
We got a large number of responses, ranging from detailed criticisms of the
syllabus, to polemics for or against the current system. Rather than try to
build a consensus where none seemed evident, our major conclusion is that we
needed introduce more flexibility in the system. Hence one of our major
recommendation is for greater independence, within carefully prescribed
boundaries. Other criticisms centered on the extremely tight grading schedule of
the common final. Perhaps the one comment on detail we heard the most often is
that there is need for many more and different problems, that currently our
problems are all of a type and neglect some fundamentals and other aspects of
calculus. It is also possible to learn the type of problems without learning
calculus. Other remarks addressed topics that have been omitted, but should be
included. There were a number of such, but several people pointed out that in
Math 307 the students are assumed to have a working knowledge of limits and
continuity.
One of the main questions we set out to answer, was the following: Why are so
few professors volunteering to teach calculus? The responses were varied.
Certainly large classes, low pay and ambiguous teaching evaluations are all
factors. However, there were a variety of responses to the effect that the
problem wasn't calculus itself, or even calculus in large lecture format, but
the rigidity and style of the current system. Among other remarks, we had echoes
of Debra Friedman's sentiment that we don't respect our students.
We also sought the opinion of the graduate students. Larry King gathered a
group of students who, in turn, went around and interviewed every graduate
student in the department. As can be imagined, the results were widely spread.
In general, though, there is a substantial preference for increasing the amount
of drill and the amount of theory in our courses, and at least half of the
respondents were in favor of using fewer word problems. Moreover, the grad
students were nearly unanimous in agreeing that potential math majors are not
being well-served by the current program. Indeed, a majority of grad students
who responded stated that, had they been undergraduates in the current U.W.
program, they would not have chosen to go into mathematics.
One aspect of the current program that was regarded as a success by almost
everyone in the department is that Math Study Center. This corresponds to
remarks we heard from others on campus, most notably from the undergraduate
advising office.
g. Students
We tried various ways to gauge student responses to our calculus courses,
but, finally, we resorted to focus groups, run by Tom Taggert, Assistant
Director of the Office of Education Assessment, and Ken Etzkorn of Undergraduate
Education. There were two groups of students: one had recently completed a
calculus class, and the other had done so some years earlier and were using it
their majors. There was a cross-section of abilities, but we excluded students
with final grades below 2.0. There were nine students in the former group and
six in the latter. These groups are very small, and the results should be
balanced by other means, perhaps by follow-up groups. These focus groups were
held on May 12 and 13 and we received the report on May 22.
First, both groups of students felt that story problems were important and
were not critical of that approach. They felt the emphasis on them should
continue.
Second, in contrast to the ratings on the student evaluations, the general
feeling was that the present text for Math 124/5 was adequate, but would be
greatly helped if it could be cross referenced to a good, standard, more
traditional text that included additional explanations and problems. (This was a
spontaneous suggestion, not one we included in our questions as a possibility.)
This would take care of several objections to the current text:
1. Not enough examples, sample solutions, and explanations.
2. Difficult to use as a reference. Students complained about having to read
the entire chapter in order to find the point they were particularly interested
in. An index would be helpful here.
3. Dense type-setting.
This would also speak to student's concerns that they have a reference that
they could keep, and use easily in the future. An $80 price didn't seem to
bother them, assuming the text would be used for the whole sequence.
Third, there were a number of comments about the Math 126 text. Specifically,
some students felt that there were not enough problems, and that some of the
materials could be easier to read.
Fourth, several students mentioned that it was nice having a smaller text.
Fifth, student misunderstand the point of the common final, and there is a
myth that the final is written by a small number of the instructors, giving an
advantage to the students of those professors. Whereas in fact problem
submissions come from all instructors and the exam is compiles by someone not
instructing the course in that quarter.
Finally, the student reaction to the TA sections was very mixed. Some said
the TA was better than the lecturer. Others regarded the sections as basically
``busy work''. This perception seemed to be independent of what the TA actually
did, whether it be going over homework or worksheets. Indeed, worksheets not
fully integrated into some sort of lecture drew very mixed responses from the
students. Even quizzes drew mixed responses. Unless they were graded and handed
back very quickly, students felt they were not performing the feed-back function
we'd like them to fulfill. (As a side note, an early, hard quiz designed to help
the students gauge their chances of success in the class is regarded, instead,
as an attempt to ``scare'' them out of over-full courses.) One of the major
recommendations of these focus groups is that there should be more TA training.
This may not be practical or even advisable, but this recommendation is a
reflection of student perceptions and sentiment.
2. Conclusions on the state of calculus
First, the form of our current calculus is highly suitable for students going
into engineering and the physical sciences. Beyond basic calculus techniques,
the most important skill these students need is the ability to model real-world
problems and the current emphasis on this skill in our calculus class serves
them well. However, the percentage of such students in our Math 124/5/6 sequence
is not as large as one might think. Roughly the same number go into the
behavioral and life sciences, and these students might be better served by a
different mathematics track, one that might not even be entirely calculus. We
also note that one department that might not be so well served is mathematics,
for the art and rigor of our subject is de-emphasized in the current version of
calculus. At the level of instructional material, we did hear from a variety of
sources that all students would benefit from working a greater variety of
problems than we now supply. This would include, but not be limited by, more
problems that are purely mathematical or even manipulative in nature. As one
engineering professor put it, ``They can model okay, but they can't integrate
sin(2x).
Second, the other members of the university community have only a hazy idea
of what we are doing and why we are doing it. A number of the people we talked
with had a very clear idea of what our calculus was, and it was false; indeed,
these ideas more suitably described what calculus was like when they took it.
Another common perception is that we should face the biology clientele more
squarely. And, with the current scrutiny of ``high demand-high drop'' courses,
we are marked across campus as teaching one of the problem courses. Most people
recognize that we have a difficult job, but it is probably fair to say that
these same people think we are doing a tough job in a mediocre manner. Whether
or not we are providing a good service, we are not necessarily seen as doing so.
There is a need for communication and outreach. As a side note, everyone we
approached was pleased and happy to talk to us.
Third, there is a certain amount of dissatisfaction in this department with
teaching calculus. This has many sources. For example, the large lecture
sections and concomitant student incivility is draining to many people, as are
the poor skills and unrealistic expectations of many of our students. The
TA/Professor relationship can range from trying to rewarding without much
predictability. However, one central complaint turns ultimately on the following
point. For many of us, learning calculus was a central intellectual experience,
one that informed the direction of our lives. We have taught it often and many
of us have loved it. The current text and materials do not let us, in our own
ways, express what we find beautiful about the subject. In sum, faculty and
graduate student morale would improve considerably if there were more freedom
and independence in the curriculum.
Finally, the largest impediment to teacher and to student satisfaction is the
poor preparation and unrealistic expectations of our students. Our classrooms
hold an incredible mixture: students newly out of high schools, transfers,
returning students, and so on. The first group - those newly out of high school
- is surprisingly small, as over 40% of the students on campus are transfers,
and the trend is for these students to postpone their mathematics until arrival
here. (Math is seen as hard and adversely affecting qualifications for
admission.) Many have not had math for several years and even those right out of
high school may not have taken math in their last year. The skills tested on the
placement test are very different from what we expect our students to be able to
do and someone with a three-year-old community college credit for Math 120 (and
who is thus eligible for 124) can easily have forgotten many fundamentals. The
level and amount of work we expect from our students is far higher than anything
they've ever seen before. And yet the students think that an adequate score on
the placement test or transfer credit should be a guarantee of success. The
dissonance that results from thwarting this expectation is enormous. By some
estimates, as many as a quarter of our students do not belong in Math 124.
3. Recommendations
Before detailing our recommendations, this committee would like to reaffirm
the commitment of this department to high-quality calculus courses emphasizing
word problems and mathematical modeling. Such a course is necessarily difficult
for many students, but an easier course does neither the students nor client
departments the service they need. There are many ways to try to keep the
standard up, but none will be effective without widespread support or without a
commitment by the regular faculty to teach the class. A course taught be a
jumble of adjunct faculty or disaffected professors will necessarily be of less
than the highest quality.
a. Summary of Recommendations
b. Physical Science and Engineering Calculus
A primary recommendation of this committee is to better integrate the
syllabus of the basic service course sequence consisting of the five quarters
124-125-126-307-324. These courses should be regarded as a single, coherent
stream, and the computer adjuncts 187 and 387 should be integrated into this
stream. This department needs to collectively decide on the content, order of
topics, and emphasis for these courses. This examination should begin
immediately and it should heavily involve the client departments.
Linear algebra probably needs to be thought about also, but that's a topic
for another day.
Here are some specific recommendations on the mechanics of the course.
First, we would respond to the desire for more flexibility in teaching
calculus. This would consist of three points: improving and expanding the texts,
a loosening of the syllabus, and a moderation of the common final. We emphasize,
however, that we must maintain the emphasis on mathematical modeling, which
means, among other things, that teachers would be expected to address and assign
a significant number of hard word problems. Second, we would also immediately
begin to address the problem of assessing student preparation and expectations.
Third, we recommend the immediate revival of the Math Services Committee as a
vehicle for communication with other departments about these and all our
courses.
As far as we can tell, this department is deeply divided on the subject of
textbooks for calculus. A lengthy open meeting on a draft copy of this remark
did very little to resolve this issue. Some of that ambivalence is shared by the
members of this committee. On the one hand, locally developed notes are concise,
focused, cheap, and make the course easy to explain to client departments. More
specifically, there is no doubt about what is to be covered. On the other hand,
a published text is flexible, does not need constant maintenance by members of
the department, and could easily be adapted to a year-long sequence for the 100
level courses. We recommend that the department experiment with and then choose
one of the following two courses of action.
A. The current notes for 124/5 and, perhaps 126, could be thoroughly
reworked and expanded. This could include, but not be limited by, rewriting,
re-type setting, indexing, and the addition of some topics and problems. What we
have in mind here is the model that was successful in Math 120: the project was
begun by one faculty member and carried forward by another. The Math 120 notes
continue to evolve on a quarterly basis through frequent instructor discussions
of the material. Ken Bube has agreed to work on this, and Ramesh Gangolli has
agreed to help. Both feel that there is enough support in the department to
start, but to proceed beyond a certain point they would want the guidance of a
syllabus committee to proceed, and an explicit agreement in advance that product
produced would have to be thoroughly vetted by the rest of the department before
going into widespread use. These notes could be cross-referenced to a standard
text; however, we note that past attempts at multiple texts haven't worked well.
The time estimate is that it would require about a year's worth of work for each
of the 100 level courses. There are funds on campus for such projects.
B. The department could choose a published textbook that is
mathematically clear and precise, has a significant number of applications, has
a wide variety of problems of all levels of difficulty, including many word
problems in sections that are, on the face of it, not directly concerned with
applications. Some areas of application should be developed early and returned
to repeatedly throughout the book. It is difficult to recommend any one text
without having used it. Therefore, we would recommend a pilot program using such
a text for the year 1998-99. We note that there are texts that are not
completely incompatible with the current course we teach, and it would be
possible to write a common final of the type we suggest below that covered both
the current and experimental versions. Robin Graham and Dan Pollack have
tentatively decided to carry out such an experiment in Math 125 in the Fall of
1998.
Whatever the choice this department makes, we would like to see each syllabus
pared to eight weeks, leaving two weeks free and at the discretion of the
individual instructor. However, we would expect that any new syllabus would
supply detailed examples on the type and difficulty of word problems that we
would expect any successful student to be able to do. The new syllabus should
result from examination process suggested above. As part of this development
process, it might make sense to have a period of experimentation, wherein
interested professors to try new ideas and approaches.
This forces a change in the common final; in a word, it could not be
completely common. However the common final is a very effective method of
enforcing the syllabus and for defending the instructor against the pressure to
teach an easier course. Therefore, we suggest that 75% of any final be in
common, and the the other 25% at the discretion of the instructor. There are
some logistic difficulties to this proposal, of course, but we have given it
some thought and believe it is feasible. We also recommend that the grading
period be slightly lengthened - the current Saturday night sessions are
draconian to many - and that there be more flexibility in the types of problems
considered. The current finals are very stylized, and in some ways very
predictable. This could start immediately.
To address the problem of getting students up to speed in a course that is
appropriate for them, we have two suggestions. One is to change the placement
test. The current test is not very different from an SAT test and is not
suitable for our students. Fred Campbell has indicated that we could design and
implement our own test. We are told that the university would help us distribute
sample tests to incoming students, including transfers, and to high schools. The
test itself and the active dissemination of it contents - Debra Friedman even
suggested advisory mailings to new students and high schools - could have a very
significant impact on student expectations and the design of prerequisite
classes in high schools and community colleges. The second suggestion is to
implement a sequence of proficiency and diagnostic tests that the students could
take to gauge their abilities. These last could be bought - the University of
Nebraska has a battery of on-line tests that would be suitable - and they could
be expected of all students.
c. New courses
We suggest the introduction of two new calculus sequences, the first intended
for the behavioral and life sciences, and the second - which we envision as much
smaller in enrollment, but not in importance - would be intended for students
interested in calculus as mathematics.
The largest single program on campus is biology with, in 1997-98, roughly
1850 students in the biology, microbiology, zoology, and botany majors.
Furthermore, there are about 400 biochemistry majors and 600 psychology majors.
By contrast there are roughly 600 majors in chemistry, physics, and mathematics
combined, and 2700 in all the engineering majors. One of the main questions we
set out to address was how well this cohort of biologists and psychologists was
served by our current calculus.
There are several ways to answer this question. Concentrating on biologists
for the moment, these students need certain mathematical skills, including math
modeling skills, which our current calculus certainly supplies. They also need
certain concepts from statistics and probability which they currently obtain
from 400 level QSci courses. So, in some sense, we are doing our job.
Nonetheless, the students feel badly used, complaining that they are forced into
a mold that doesn't fit them. They vastly prefer the QSci 291-2 sequence, often
stating explicitly that they like the biological emphasis of the examples. And,
to be fair to them, there is probably more material in the 124/5/6 sequence than
they need. Finally, many people on campus look at our block of 24,000 student
credit hours in calculus and wonder why we can't break it up to serve this
clientele.
We are told that biology majors arrive on campus as such, and rarely change
to other scientific majors; hence there would be no pedagogical harm in
targeting this audience. Psychology is a different matter, in this regard, as
many of these majors arrive late to awareness of Psychology as an intellectual
discipline; nonetheless, they may be well served by a different calculus as
well.
For all these reasons, we recommend developing a course with this audience.
Part of the development would be discussing with the relevant departments
exactly what their students need. Note, however, that it is not our intention to
recommend an ``easier'' class, and the biologists would be upset if we neglected
certain fundamentals.
Any such course should only be developed with thorough consultation with the
client departments. We recommend beginning this process as soon as possible.
We also recommend a calculus for mathematicians, perhaps with a slightly
higher entrance requirement than our current Math 124, but without the stringent
requirements of Math 134. The target audience would be bright, interested
students who may not have a strong calculus background. Presumably such a course
would be easy to develop and there would be any number of volunteers to teach
it.
This ``mathematical calculus'' could have several beneficial effects. The
first is that we notices that very few math majors are created by the current
hones sequence: at most one or two a year. Designing a good calculus sequence
that would appeal to a broader range of students should increase the number of
students who are interested in majoring in mathematics, and who are better
equipped to enter the ACMS major. Certain physics majors would also easily
profit from such a class. The second benefit of a mathematical calculus would be
that we could put here the rigor and machinery needed or wanted by certain
students while, at the same time, orienting the basic calculus courses in the
direction of the client departments. This could give us more latitude to
demonstrate to these departments that we are responsive to their students.
4. Toward the ideal calculus
Postulating infinite resources and an ideal world, we would offer calculus as
follows. First, we would have an extensive screening and placement system to
make sure students are in the right class. Second, we would teach in small
classes - no more than twenty-five students. The class would consist of two
parts: a four-credit course meeting four times a week, plus a one-credit
three-hour ``lab" which would not do homework, but would use worksheets, group
work, computer modeling, etc. The model, of course, is a science lab and, as
with most science labs, our lab would have its own syllabus and agenda and
students from any lecture could register for any lab. (A by-product of this
approach would be a week-by-week enforcement of uniformity among lectures.) Labs
could trail lectures by a few days to allow lecture instructors some
flexibility. Third, we would have on hand an extensive battery of materials -
quizzes, worksheets, proposed group projects, exams, interactive computer
workouts, and so on - to encourage a variety of teaching techniques and
experiments. Indeed, we would do everything possible to encourage an atmosphere
where each instructor would seek to teach the course best suited to his or her
talents, inclinations, and strengths. Fourth, we would have a wide variety of
faculty and graduate students involved in calculus. In short, we would make the
teaching of calculus in this department into a living, dynamic process, with
broad involvement.
Fred Campbell, Debra Friedman, and Nancy Kenney have all invited us to make a
``radical proposal'' for teaching calculus. The calculus program envisioned in
the previous paragraph would certainly be radical. We recommend that this
department put together a proposal to find the resources for such a program,
using the experiences of the University of Michigan and the University of
Nebraska as a guide.
The fundamental obstacle to this program is one of personnel. We emphasize
that with the level of freedom we would like to grant individual instructors, we
would require successful, experienced mathematicians, or highly-motivated,
closely supervised graduate students. It would take about 225
twenty-five-student sections to teach our current Math 124/5/6 sequence. For
comparison, it would take 160 forty-student section, and we now have roughly 40
calculus sections, each with a lecturer and two graduate students. There would
also be a need for support personnel - staffing the study center, collecting and
maintaining materials, including computer materials, enough competent graders to
correct the homework accurately, and so on. There would also need to be a
faculty member to oversee the entire program, to prevent descent into anarchy.
We make this recommendation knowing full well that, as part of this proposal,
this department would have to offer something. We could not expect, for example,
that the university would fund a battery of teaching AAPs simply so that we
could teach in small classes. The exact nature of what we would be willing to
offer and what we could expect in return is something for this department as
whole to decide. But we are very aware that the status quo will not serve. If we
continued to be perceived as stagnating, aloof, disinterested in our students,
and generally doing a mediocre job, we feel certain that this department will
fare poorly. According to the Department Ratings Summary, prepared by the Office of
Educational Assessment, for the period Autumn 1998-Summer 1999, the adjusted
mean rating for 100-200 level Math Faculty on ``The instructor's effectiveness
in teaching the subject matter" was 4.21 (52 classes). This rating was higher
than the average for the sciences (4.08) and higher than the average for the
University (4.08). Note that we do not offer 200 level courses, and that
essentially all of our 100 level classes are precalculus and calculus. The
rating for ``The course as a whole" was slightly lower than the average in the
Sciences and the University, but there are many aspects of these courses which
are not under the control of the instructor, such as the text and syllabus,
and thus this rating should not be used to evaluate instructors. Most of the
changes (except in Business Calculus 111-112) listed here had not yet taken
effect at the time of these ratings, so we expect that this latter rating will
rise.
Why support smaller classes in mathematics? Math is like a foreign language.
Interactive communication is necessary for better teaching. There is a lot of
information and technique that must be covered in a small time slot. Students
must follow or create a sequence of logical deductions, and many will get stuck
at very different places. If you miss a point you may be lost for much of the
lecture. But if you have a chance to ask a question, you may get around your
difficulties or discover where you need to review prerequisite material. Asking
questions is clearly easier in a small class.
English composition courses in some sense provide a similar service role for
arts and humanities students as our entry level courses provide for science
students. The total enrollment in English composition courses is approximately
the same as entry level math classes, yet they are limited to a maximum of 22
students per class. Small classes are also found in foreign language classes.
The smaller lecture sections will allow more flexible formats. For example,
one configuration would be a faculty member running the lecture plus
one of the quiz sections, while a TA runs the other two quiz sections. This will
result in closer contact between the faculty member and at least a portion of
the class. We expect that this might have a positive effect on the atmosphere in
the lecture section since these students would be more familiar with and hence
more comfortable with the faculty member. Organization and synchronization with
just one TA would also be easier for the faculty member. Some of the faculty in
the past have left the organization of the quiz section up to the TA. In this
model, the professor will be more intimately involved. Other benefits might
accrue to the students who will in some cases have regular class meetings with
full professors in small (27) classes.
Another advantage of smaller classes is increased access. There will be more
sections offered at more times through the day. Currently if there are more
students needing a 10:30 calculus class, we have to decide if there are enough
to warrant adding a full 160-sized class. This is easier to do with size 80.
Another way to put it, instead of having to choose to add a 160-sized class at
either 9:30 or 10:30, we can put a size 80 class at both. Smaller classes are
also easier to add just before classes begin if the demand is there. We can also
add one more quiz section to a lecture without much difficulty.
One of the main objections by faculty to teaching calculus is the anonymity
of students in large (160) lecture sections. A quick glance at the enclosed
table of available classrooms (Appendix C) shows that few are of the size of our
current calculus lectures (160). This has led to using even larger rooms, and
thus greater distances between the lecturer and the back of the audience. The
oft-heard reason for top-notch Washington high school students choosing schools
other than UW is the size of classes. We have brought a number of high school
teachers on campus this year to discuss their concerns. Some have volunteered
that they advise their students to either go to Universities with smaller
classes or to take their introductory math at community colleges where they can
get more individual attention. Last year we experimented with size 25 (Math
124), size 50-70 (Math 144-145), and size 80 (Math 125) and two hour quiz
sections (Math 144-145, Math 124). The instructors were uniformly enthusiastic
about the benefits.
Here's a table comparing UW student evaluations in our small classes this
year versus large classes 95-99. The ratings are ``unadjusted'' since data prior
to last year did not have adjusted means.
The adjusted mean in all of these ratings are higher than the unadjusted
mean. See also Questions #3 and #6 in the Autumn and Winter Math 144-145 class
survey (Appendix D) showing that the students like smaller classes. That same
survey shows very favorable comments by the students about the longer quiz
sections, Questions #4, #7. The students were very happy with this change even
though it meant more class time without additional credit. The students in Math
144-145 (Calculus for Biological Sciences) performed so well that the
instructors (H. Smith, S. Tuncel) were not able to keep the mean grades as low
as our traditional mean (2.7-2.9). The faculty and students were enthusiastic
about this new class partly because of the format and partly because the
material was geared toward the students' interest in Biology, without
compromising the difficulty of the course.
In our visitations to other universities we found good pedagogical results
obtained with a variety of techniques. Having the students work together in
small groups during the TA's quiz section can be managed by one instructor
only with small classes, according to faculty at several of the schools
we visited. This agrees with an experiment in precalculus done here several
years ago. For example, a group can work together on a common ``worksheet'' that
leads them through the major ideas in a particular lesson. This has greater
pedagogical effect than simply having the TA answer questions on homework. The
testing and development of worksheets takes a lot of time, as we saw when
observing the implementation in Physics classes by Lillian McDermott's group.
Part of the proposal is for a significant effort to develop worksheets and to
fine-tune the new syllabus for our new text, including extensive testing during
Spring and Summer 2001, by teams consisting of 1 faculty and two teaching
assistants, one for the first quarter of calculus (Math 124) and one for the
second (Math 125).
Many math departments around the country are moving to smaller classes,
though usually much smaller than 80: Minnesota, Michigan, Arizona and Maryland,
for example. What we like most is the enthusiasm of our instructors who ran the
small experimental classes. Ken Plochinski was one such instructor who had to go
back to a size 160 class last spring. He remarked that he can't believe how much
worse it is than size 80.
Part of the proposal is to provide partial salary support for community
college teachers so that they can spend their sabbaticals at the University of
Washington. We are required to accept precalculus and calculus transfer credits
from Community Colleges. Thus it makes sense to ensure that their courses are
equivalent to ours and to work with the community college teachers to ease the
transition for students from community colleges to the UW. If 40% of UW students
are transfer students, certainly a large number are coming to UW math classes
from the community colleges. We will run weekly seminars where faculty and
community college teachers will present the techniques and materials they use in
common courses. We will also have faculty discuss the material students would be
required to know in subsequent courses to calculus at the UW. The community
college teachers who needed additional financial support would gain first hand
experience with our precalculus and calculus courses. We would benefit greatly
from their ideas and suggestions for improvement, since they have a lot of
experience teaching these courses. I had email conversations with a number of
very interested community college teachers. Shannon Flynn, Chair of Sciences at
Shoreline Community College, was very excited about the possibility and would
encourage her math faculty to participate. In fact she had already planned to do
something similar for her own sabbatical before taking her current job. This
outreach program will also provide the opportunity to community college teachers
to ``reconnect'' with mathematics, to rekindle their interest in mathematics
through attending seminars and advanced courses, or working directly with a
faculty member.
Department Contribution
Administration Contribution
The department and administration contributions are roughly equal: 50 faculty
will average a 10% increase in teaching load (2.9 to 3.2 units), which is
equivalent to 5 FTE. Five TA positions are equivalent to 2.5 FTE, so including
the two positions devoted to sabbatical supplements, the administration would
contribute a total of 4.5 FTE. This proposal is limited to the first two
quarters of calculus because of the associated costs.
Summer 2000: Hart Smith and Dan Pollack developed suggested homework sets and
continued to improve the new syllabus for the new text: Stewart, Early
Transcendentals, for 124 and 125. The emphasis on applications problems will set
the tone for individual instructors in the autumn quarter. It is important to
keep the emphasis of the course on applications, as needed by the client
departments. Each quarter thereafter, the syllabus will be revised to reflect
the experiences from the preceeding quarter.
Annual Symposium for Community College Teachers
On November 17, 2000, we will hold a symposium for Washington Community
College mathematics faculty. We expect for this symposium to be an annual event.
The purpose of the symposium is to foster cooperation and communication with
community college mathematics faculty, with emphasis on courses that we teach in
common. This first meeting of the symposium will be devoted to informing CC
faculty of recent and planned changes to our curriculum. It is anticipated that
future meetings of the symposium with contain sessions on teaching techniques,
technology use in the classroom, and roundtable discussions of other timely
issues.
There will be a plenary session at 11:00 a.m. giving an overview of our
recent and planned changes in first and second year courses. At the plenary
session we will also announce and describe the Sabbatical Program. This will be
followed by a luncheon and special sessions. Patrick Averbeck has invited those
interested to attend his Math 111 class at 12:30. This will be followed by a
discussion of issues that arise in teaching business precalculus. There will be
a session at 1:00 on Math 120 and a concurrent session on Math 124/5/6. At 2:00
there will be a session devoted to course equivalency questions and a concurrent
session on 300 level courses.
The expected cost, including room rental and the luncheon, is $1000.
This proposal deals with a revision of math 124 and math 125. A natural
subsequent course in which to study outcomes is math 126, the third quarter of
the first year of calculus. To reduce the costs of the program, we did not
propose reducing the size of math 126 which will continue to be taught in
classes of size 160. Thus after taking math 126, students will have had
experience in both size 80 classes and size 160, and extended quiz sections
versus classes without extended quiz sections. Each June, beginning in 2002, we
will assess the effectiveness of the program through interviews and surveys of
the students and faculty. The results will be used during the summer to improve
the program for the subsequent year. We do not have experience in designing
assessment methods, so we will work with CIDR and OEA to design methods of
assessing the outcome of this experiment. We will also seek the advice of
community college teachers who come here on sabbatical. We will also work more
closely with advisors and administrators to assure that we collect all
complaints about our calculus courses so that we can understand the problems.
Assessment is difficult because there are many variables, and few controls. For
example, students will have some knowledge of the effectiveness of the course
they take, but generally will not take the same course taught from a different
perspective and thus cannot compare. Some of the items we might seek to measure
are: What is the level of satisfaction with these courses, by the students and
by the faculty? Are the client departments happy with the balance of emphasis on
word or application problems versus basic skills? Do the students prefer the
longer quiz sections? Do they prefer worksheets or other materials? Do the
students and faculty feel that the smaller lecture and quiz sections
significantly benefit the learning environment? We will also seek to poll
students who take 124 or 125 but do not continue on to math 126. Some of these
students are pursing degrees which do not require a full year and some will be
students who are not successful in 124 and 125. We will seek to understand some
of the reasons that students do not do well in these courses.
This program will be run on a trial basis for three years. Given a successful
outcome to the trial experience, and informed by analysis of the effectiveness
of each of the components of the program, Dean David Hodge has reserved $150,000
of New enrollment funding for this purpose and has agreed to provide an
appropriate level of on-going funding, including additional funding if
warranted, to continue the program at the conclusion of the Tools for
Transformation support. The allocation of funds for the Tools project and the
reserved new enrollment funding are independent of other resource issues that
may involve the Department and the College.
Karen Freisem and Don Wulff of the Center for Instructional Development and
Research (CIDR) and Jerry Gillmore of the Office of Educational Assessment (OEA)
have agreed to assist the mathematics department in developing methods of
assessment of the success of the program.
This proposal was developed by the math department calculus revisions
committee over the course of the academic year 1999-2000 and further revised
through a series of open departmental meetings culiminating in a vote 30 for, 7
opposed and 2 abstensions. Departmental contribution beyond the level in this
proposal would significantly increase the number opposed.
Appendix D
Goerss Report (June 1998)
Ad Hoc Committee on Calculus
June 1998
In order to answer these
questions, we interviewed members of the client departments, senior
administrators concerned with undergraduate education, the faculty of the math
department, the graduate students in the math department, and, with the aid of
Thomas Taggert and Ken Etzkorn, we held student focus groups to try to get an
accurate picture of the student experience.
Appendix E
There are a number of changes we've made already:
Changes as of September 2000
Appendix F
Tools for Transformation Proposal
During the academic year 1997-98, the Math Department conducted an
extensive review of its calculus program, including focus groups of students and
faculty, surveys of teaching assistants and faculty, and interviews with
selected client departments and administrators (Appendix A). In 1998-99, we
visited a number of mathematics departments around the country in order to
identify ``best practices'' used elsewhere. Last year we experimented with many
of the better ideas and suggestions developed over the previous year. At the
same time we began implementation of many of the recommendations of the calculus
review committee (Appendix B). The change proposed here involves significant
contributions from the department in terms of increased teaching load, and from
the administration in terms of new resources.
Recommended changes to the class format of the first two quarters of
Calculus:
(``instructor overall'' or ``instructor
contribution'')
Professor
Large Classes
Small
95-99 average
99-00
P. S.
2.50
3.63
S. T.
2.89
4.40
K. P.
3.73
4.55
H. S.
4.04
4.17
Item #18 (``amount learned'')
Professor
Large Classes
Small
95-99 average
99-00
P. S.
2.71
3.00
S. T.
2.93
3.66
K. P.
3.48
3.85
H. S.
3.80
3.75
Implementation
Development
A calculus committee of approximately 6 faculty and two teaching
assistants will be appointed to oversee the project during the year. Ken Bube
has agreed to head this committee. During the autumn and winter quarters, the
committee will construct seven basic worksheets for math 124, and seven for math
125 designed to be used in the extended-length quiz sections. Work will also be
done on sample proficiency (skills) tests and quizzes. During the spring
quarter, these materials will be tested in classes, reevaluated and rewritten by
the committee. A second iteration of this process will occur during the summer.
We will not be able to test the worksheets completely, since they will be
designed for 75 minute quiz sections, yet the quiz sections during the spring
and summer will only be 50 minutes long. We'll probably have to divide them into
smaller pieces for testing.
Each participating faculty member can choose to receive compensation
either in the form of partial summer salary, or partial teaching credit. As I
have explained before, our department assigns a value to each course, roughly
0.8 for a large lecture, 0.7 for a senior level or graduate course and 0.6 for
sophomore-junior courses. The average faculty load is approximately 2.9 of these
teaching units. Each year the load for each faculty member is computed and any
excess or debit is carryforward to the next year. The average faculty buyout
cost for teaching related activities is approximately $1,000 per 0.1 teaching
unit. The committee will decide how to distribute these funds to various faculty
depending on how much effort was contributed. A similar process will be
developed to compensate the teaching assistants or provide them with release
time from teaching. The portion of the funds corresponding to release time will
be used by the department to hire part time faculty to replace the lost teaching
capacity. Since the total effort will not be known until next summer, each
faculty member choosing to take teaching credit instead of partial summer
salary, will carry that credit forward into the next academic year.
Assessment
Permanent Funding
2
Lecturer level positions to be used
for sabbatical supplement support for up to six community college teachers
@ $45,000 per year
$90,000
21.8% benefits
19,620
4
TA positions (entry level) @ $1212 per
mo. x 9 mos.
43,632
10.2% benefits
4,450
tuition @ 1800 per quarter
21,600
1
PDTA I (TA mentor) @ $1299 per mo. x 9
mos.
11,691
10.2% benefits
1,192
tuition
5,400
Development
18,000
Assessment
2,000
Symposium
1,000
Total
218,585
2
Lecturer level positions to be used
for sabbatical supplement support for up to six community college teachers
(4% increase)
$93,600
21.8% benefits
20,405
4
TA positions (entry level) @ $1260 per
mo. x 9 mos. (4% increase)
45,360
10.2% benefits
4,627
tuition (4% increase)
22,464
1
PDTA I (TA mentor) @ $1351 per mo. x 9
mos. (4% increase)
12,159
10.2% benefits
1,240
tuition (4% increase)
5,616
Assessment
2,000
Symposium
1,000
Total
208,471
2
Lecturer level positions to be used
for sabbatical supplement support for up to six community college teachers
(4% increase)
$97,344
21.8% benefits
21,221
4
TA positions (entry level) @ $1311 per
mo. x 9 mos. (4% increase)
47,196
10.2% benefits
4,814
tuition (4% increase)
23,362
1
PDTA I (TA mentor) @ $1405 per mo. x 9
mos. (4% increase)
12,645
10.2% benefits
1,290
tuition (4% increase)
5,841
Assessment
2,000
Symposium
1,000
Total
216,713
2
Lecturer level positions to be used
for sabbatical supplement support for up to six community college teachers
@ $45,000 per year
$280,944
21.8% benefits
61,246
4
TA positions (entry level)
136,188
10.2% benefits
13,891
tuition
67,426
1
PDTA I (TA mentor)
36,495
10.2% benefits
3,722
tuition
16,857
Development
18,000
Assessment
6,000
Symposium
3,000
Total
643,769
Appendix G
Assessment Document
2. Student email (From Professor John Sylvester's class):
From: Crebecago@aol.com
Date: Thu, 19 Dec 2002 23:11:50 EST
Subject: Thank you
To: sylvest@math.washington.edu
Professor,
My name is Cynthia Silver, and I was in your math 124 class at 8:30. I
just want to thank you for making my first quarter at UW a lot more pleasant
than I expected. As a freshmen at a major university, you are prepared for
teachers who care only about research and consider teaching a nuisance.
Contrary to some of my other professors this quarter your lectures were
entertaining, you allowed questions, and seemed to genuinely care about the
success of your students. Thank you again.
Cynthia Silver
Date: Mon, 9 Jun 2003 11:50:02 -0700 (PDT)
From: Ken Bube