Office: Padelford C-544
Office hours and email
Michael Decker
mdsd at math.washington.edu
sections DA & DB
Walker Carlisle
walkernc at math.washington.edu
section DC
Midterm 1:
Thursday, October 18
Midterm 2:
Thursday, November 15
Final Exam:
Saturday December 8
5:00 PM to 8:00 PM
location: Kane 130
Here is the updated grade record, with final exam scores and course grades. These are your actual course grades that I will be reporting to the registrar (so they include the curve, dropped lowest homework score, etc.). If you notice any errors in the record, please report them to me.
I will be in my office on Friday from 1 to 2 pm if you would like to see your final exam or talk about any grading questions. You are also welcome to stop by any time next quarter.
Have a good break!
Final exam stats: n=83; min=14; 1st quartile=55; median=66; 3rd quartile=76.5; max=92 (2 students) (these scores are out of 95 possible).
Grading of the final exams is going swiftly. I expect to have the grade record updated here by Thursday evening. I also intend to have an office hour on Friday, from 1 to 2 PM, in Padelford C-544, if you wish to see your final exam. At the moment, I have a nasty head cold (or something), so there is a possibility I will cancel this office hour: just check here on Friday morning to see if I've added a cancellation message.
If I don't see you Friday, you can always stop by during my office hours next quarter to see your final exam. My hours will be listed here after the start of Winter quarter.
Have a good break!
Look at the discussion board (link at right) for suggestions for studying for the final exam and for links to old final exams.
Here are some examples of some interesting curves generated by parametric equations.
This is the website for a seminar I taught last spring on curves. The resources list has a number of examples of interesting curves you might like to explore.
Here are two things to help you prepare for the final exam.
Here is an animation illustrating one of the examples from Wednesday's lecture that relates to one of the homework problems from chapter 22.
The grade record is now available.
Your grade information is listed under the last four digits of your student id number. Be sure to check that your scores have been recorded correctly. If you find an error, please bring it to the attention of your TA right away. Included is also an estimated course grade. This includes the course curve, and the dropping of your lowest homework score. Obviously it does not include the final exam: that can have a very large impact on your actual course grade.
Here are some statistics for the second midterm:
| n | 86 |
| 1st quartile | 24 |
| median | 30 |
| 3rd quartile | 34 |
| max | 40 (2 people) |
As far as translating scores into numerical grades, I can say:
I'll be posting a grade record later this week for you to check that your scores are recorded correctly. This will also have a current estimated course grade, that includes both exams, the homework, test-prep points, etc.
Answers to the second midterm are here.
The answers to Winter 2007, problem 3, are incorrect. Part (a) should be 140.484 meters, and part (b) should be 2.995 meters per second.
On Wednesday in lecture, we'll go over this exam. Problem 1 requires methods from chapter 18 which is not on the exam; with chapter 17 methods, you should be able to find the sinusoidal function, and answer the question: what was the temperature at 3 PM?
Here is a review sheet for next week's midterm exam. We've covered a lot of material since the first midterm: start reviewing as soon as possible.
Here is an applet illustrating the addition of two shifted, scaled absolute value functions.
Here are answers for the first midterm exam.
Here are some statistics for the first midterm exam.
| n | 86 |
| min | 2 |
| 1st quartile | 17.25 |
| median | 28 |
| 3rd quartile | 32 |
| max | 38 |
| <13 | 0.0 |
| 13 | 0.7 |
| 15 | 1.1 |
| 20 | 1.9 |
| 25 | 2.8 |
| 30 | 3.3 |
| 35 | 3.8 |
| ≥37 | 4.0 |
Here is a review sheet for the first exam.
The answer to problem 7.11 in the text is incorrect. The optimal dimensions are 3.36059492 feet for the radius of the circular part of the window, and the rectangular part should be 3.36059492 by 6.72118984 feet.
Here is an applet I wrote to illustrate what's going on in problem 7.11.
I'm holding extra office hours this week to facilitate the required office visitations. Here are my office hours this week, all in my office Padelford C-544:
| Monday | 10:30-12:15 |
| Tuesday | 2:30-3:30 |
| Wednesday | 10:30-12:15 |
| Thursday | 2:00-3:00 |
| Friday | 10:30-12:15, and 3:30-? (to whenever there is not a stream of students at my office door) |
Check this page for help in finding my office.
Lecture is cancelled for Friday, October 5.
Also, quiz section is cancelled for Thursday, October 4.
There aren't any "lecture examples" for next week (October 8-11). The examples in lecture will have fewer words than the last several examples.
The lecture examples for next week are available in the righthand column. Please print Lecture 3 and Lecture 4 examples, and bring them to class next week.
Note: There is no lecture on Friday, October 5, so homework will be due on Wednesday, October 3.
Welcome to Math 120 D, Autumn 2007.
Announcements for the course will all appear here, so check this page frequently during the quarter.
Please print out the Chapter 2 lecture examples (in the right Resources column) and bring them to lecture on Friday where we will discuss them.
Homework Schedule
Course Calendar
Course Syllabus (pdf)
Course Discussion Board
Math 120 Materials Website
Lecture examples
Math Study Center
Student Counseling Center
Information for Students of International TAs
Center for Learning
and Undergraduate
Enrichment (CLUE)