21-260: Week #13

The reading and Homework assignments for Week #13 have been posted. You can follow the link from the Schedule page.

21-260: Week #12

The reading and homework assignments for Week #12 are posted. Follow the link from the Schedule page.

21-260: Week #11

The assignments for Week #11 have been posted. Follow the link from the Schedule page.

21-260: Exam #2

Most of you should have your Exam #2's back by now. The grade cutoffs for the second midterm are: A - 80, B - 70, C - 60, D - 40. If you took the makeup exam on Tuesday morning, I have your graded exam, you can get it before or after class tomorrow. I've made the grades available on the Blackboard site.

Week #8

The reading and homework assignments for Week #8 have been posted, and now linked from the schedule page, too. Since the assignment was not posted until now, I've removed one of the problems. You can find the assignment by following the link from the Schedule page.

21-260: Exam Date Changes

As I announced in class yesterday, I've had to move the second and third mid-term exams from their originally scheduled dates. The second mid-term, instead of being the Wednesday after spring break, will be the Friday after spring break, March 23. The third exam, instead of the Monday before spring carnival, will be the Friday after spring carnival, April 27.

I think the new dates will be generally preferable to the original dates, but in case they are not, let me tell you that the alternative would have been to give the exams on the scheduled days at 7:30 in the morning.

21-270: Week #7

The reading and homework assignments for Week #7 have been posted. You can follow the link from the Schedule page.

21-260: Exam #1

I returned Exam #1 during class yesterday. If you didn't get yours, you can pick it up from your TA during recitation today. The grade cutoffs for the exam are - A:85, B:75, C:65, D:50. These cutoffs are important for two reasons. First, it gives you an idea where you stand, and second, I use them to compute grade cutoffs for your cumulative averages.

Since the grade cutoffs for this exam are the same as for the homework assignments, the grade cutoffs for cumulative averages are the same, too - A:85, B:75, C:65, D:50. I compute the grade cutoffs for cumulative averages by averaging the grade cutoffs the same way I average your grades (i.e. the A cutoff for cumulative averages is the average of the A cutoffs for each assignment).

An important point to note is that, when computing your averages, the difference between, say, an 84 and 85 is only a 1% difference, not a whole letter-grade difference.

I will make your exam grades and cumulative averages available on the blackboard site.

21-260: EXCEL groups

My name is Sharanya Venkat and I will be your EXCEL Leader for
Differential Equations this year. EXCEL is a collaborative learning
program through Academic Development that focuses on providing extra
practice to students in groups of 5-6 people especially in Math and
Science courses. We will be going over key course concepts and doing
practice problems based on what you cover in lecture and your
homeworks.

EXCEL groups meet once a week for one hour, at a time that fits in
with your availability. Requests to join a study group can be made
through the Academic Development Office in Suite B5, Cyert Hall.

I hope to see you soon and good luck with the course!

21-260: Exam #1 Review

I've posted a review page for Exam #1. You can follow the link from the Schedule page.