Office: Padelford C-543
Office hours
sections AA and AB
office hours:
| W | 12:30-1:30 PM | PDL C-430 |
| Th | 10:30-11:30 AM | MSC |
counihan[at]math.washington.edu
section AC and AD
office hours:
| T | 2:30-3:30 PM | PDL C-422 |
| Th | 2:00-3:00 PM | MSC |
sidneylu[at]math.washington.edu
sections AE
office hours:
| M | 6:30-9:30 PM | MSC |
| W | 1:30-2:30 PM | MSC |
| W | 7:30-9:30 PM | MSC |
frohmade[at]math.washington.edu
Midterm 1: Thursday, April 21, 2005
Midterm 2: Thursday, May 19, 2005
Final Exam: June 4, 2005, 1:30-4:20 PM,
ARC 147
Final exam info
Final exam are graded, and course grades have been calculated. Take a look at the Grade Record.
Final exam statistics:
| min | 2 |
| 1st quartile | 32 |
| median | 44 |
| 3rd quartile | 54 |
| max | 78 |
Have a good summer!
Final exams are being graded. I hope to update the Grade Record by this Friday. It will have final exam scores and actual course grades.
I will be in my office, Padelford C-543, from noon to 1 PM on Friday if you would like to stop by to see your final exam. You can also stop by any time after the start of autumn quarter.
The Math Study Center will stay open until 9:30 PM this Thursday and Friday, and then they will be closed for the quarter.
Just a note: there is a slight error in the answer to problem 2(a) of the Autumn 2004 final exam. The answer should say 89-1/6x, not 89x-1/6x.
A grade record has been posted. The purpose of this is to give you a chance to make sure that your scores have been recorded correctly. Please check the record ASAP and notify your TA if any of your scores are recorded incorrectly. Your TA will need to see homework, worksheet, or exam for which the grade was recorded incorrectly in order to make any change.
The grade record also includes an estimate of your course grade. This is only an estimate: the final exam is yet to come, and will change the curve used to determine your grade. The lowest homework score has been dropped in the calculation of the course grade.
I've removed the problems from chapter 22 from the homework schedule: chapter 23 is the important one.
Here are some practice problems for the final. Answers included!
Rough exam grade conversions:
| exam score | approx. numerical grade |
| <21 | 0 |
| 21 | 0.7 |
| 25 | 1.5 |
| 30 | 2.6 |
| 35 | 3.1 |
| 40 | 3.6 |
| 44 | 4.0 |
Answers to the second midterm.
Here are the Midterm 2 statistics:
| min | 0 |
| 1st quartile | 21 |
| median | 30 |
| 3rd quartile | 38 |
| max | 45 (5 students!) |
The supplement in this week's homework now contains answers. Download it again to get them.
The homework schedule for next Friday (May 6) now has a link to the supplementary problems. Click on the link on the homework schedule to get the small pdf with three linear-to-linear rational function problems.
The homework assignment has been updated to reflect the change I announced in lecture today. All of the homework 12 problems are now due next Friday, May 6. There will also be a few supplementary problems; they will be available here soon.
The Extra Problems have been updated with some Chapter 11 problems that will give you some good practice finding inverses.
Answers to Midterm 1.
Here are the statistics for Midterm 1:
| min | 0 |
| 1st quartile | 14 |
| median | 19 |
| 3rd quartile | 25 |
| max | 40 |
| mean | 18.95 |
| standard deviation | 8.192909 |
| ≤13 | 0 |
| 15 | 1.2 |
| 20 | 2.7 |
| 25 | 3.2 |
| 30 | 3.8 |
| ≥32 | 4.0 |
Here is an example (with sound) comparing a sine wave with a square wave (which has connections to the step functions discussed in lecture on 4/22).
I've added problems to the Extra Problems .
In case you're still looking for more mult-part function examples, here's one related to baseball.
Some people have asked about completing the square as a method for finding the vertex of a quadratic function's graph. Here is a handout on completing the square with optional exercises.
An observant student has pointed out to me that the dates for the midterm exams were listed incorrectly on this page. This has been corrected. The dates for the exams are April 21 and May 19, as given on the syllabus on the first day of class. Please make sure that you have these dates in your calendar.
Here's an animation related to an example from Friday's lecture.
Also, here's a possibly growing collection of problems that I'm considering adding to the text for next year. Feel free to consider them extra study problems. If you have comments or questions about them, please let me know. Right now, there is only one problem.
Welcome to Math 120 A Spring quarter 2005! This sight will contain lots of useful information and announcements, so check back frequently.