# Math 244 Fall 2002 Sections 1-3 Professor Bumby

## Calendar

• Wednesday, September 04. First Lecture: Begin segment on chapters 1 (Generalities) and 2 (First order equations). Maple Lab 0 (Practice Lab) assigned. Here are links to description and seed file for Lab 0.
• Thursday, September 05. First Recitation class.
• Wednesday, September 18. Maple Lab 0 due, Lab 1 assigned. Here are links to description and seed file for Lab 1.
• Wednesday, September 25. Exam 1, covering chapters 1 (Generalities) and 2 (First order equations). Some lecture time will have been devoted to Chapter 8 (Numerical methods) because the topic is related to Maple Labs, but this material is not suitable for exams.
• Monday, October 07. Maple Lab 1 due, Lab 2 assigned. Here are links to description and seed file for Lab 2.
• Wednesday, October 23. Exam 2, covering chapters 3 (Second Order Linear Equations) and 4 (Higher Order Linear Equations).
• Monday, October 28. Maple Lab 2 due, Lab 3 assigned. Here are links to description and seed file for Lab 3.
• Wednesday, November 13. Maple Lab 3 due, Lab 4 assigned. Here are links to description and seed file for Lab 4.
• Monday, November 18. Exam 3, covering chapters 5 (Series Solution) and 7 (Systems).
• Monday, December 09. Exam 4, covering chapter 9 (Nonlinear Systems).
• Wednesday, December 11. Last day of classes.
• Monday, December 23, 12 - 3 PM. Final exam. Only topics appearing on class exams will be included on the final.

The course grades will be based on a ranking on a 700 point scale composed of the following items:

• Four class exams, 80 points each, total 320. Expected time for each class exam will be 60 minutes. This allows time before the exam for last minute questions and a preview of the next segment of the course. This buffer will protect the exam from being disrupted by students arriving a little late.
• One three hour final exam, total 200.
• Four graded Maple Labs, 20 points each, total 80.

Here is a scatter plot comparing grades on the two exams. If you want to check the grades that I have recorded for you, you can find exam scores in the FAS Gradebook. The average on exam 1 was 58.595 out of 80 and the average on exam 2 was 63.819 out of 80. For each exam, there are also scaled averages (formed my dividing by the maximum possible score [or base score ] and multiplying by 10) for each problem. Scaling allows easy comparison of the difficulty of problems of different weight.

Exam 1
Prob. # Scaled Avg.
1 6.86
2 8.16
3 7.13
4 6.94
5 7.77
6 6.59

Exam 2
Prob. # Scaled Avg.
1 9.75
2 7.99
3 6.27
4 8.14
5 8.98
6 6.09

Here is a scatter plot comparing grades on the third exam with the sum of scores on the first two exams. If you want to check the grades that I have recorded for you, you can find exam scores in the FAS Gradebook. The average for the exam was 53.169 out of 80. Information about the scores on individual problems for exam 3 is in the following table. All information is based on scores for students taking exam 3 at the scheduled time. In the scatter plot, this allowed the graph to be limited to a combined score of at least 60 on the first two exams.

Exam 3
Prob. # Scaled Avg.
1 6.05
2 4.28
3 8.39
4 7.89
5 7.42

Here is a scatter plot comparing grades on the fourth exam with the sum of scores on the first three exams. If you want to check the grades that I have recorded for you, you can find exam scores in the FAS Gradebook. The average for this exam was 62.507 out of 80.
Exam 3
Prob. # Scaled Avg.
1 8.12
2 8.18
3 8.05
4 6.68
5 8.21