Moshe Cohen
Visiting Assistant Professor at Vassar College
Blodgett 112
mcohen@vassar.edu 		Mathematics and Statistics Department
124 Raymond Ave. Box 257
Poughkeepsie, NY 12604-0257

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Also see my Departmental Service page.

Teaching at Vassar College

  • Spring 2019:
    • Math 220, Multivariable Calculus
  • Fall 2018:
    • Math 364, Advanced Linear Algebra
    • Math 126-7, Calculus II: Integration Theory & Sequences and Series
  • Spring 2018:
    • Math 126-7, Calculus II: Integration Theory & Sequences and Series
  • Fall 2017:
    • Math 221, Linear Algebra
    • Math 121, Calculus I
  • Spring 2017:
    • Math 263, Discrete Mathematics
    • Math 126-7, Calculus II: Integration Theory & Sequences and Series
  • Fall 2016:
    • Math 221, Linear Algebra
    • Math 220, Multivariable Calculus

My course websites are available only through Moodle.

Teaching History at LSU


Spring 2007:
Along with two undergraduate mathematics majors specializing in secondary education, I am co-TA-ing Sections 10 and 45 of:

MATH 1431, Business Calculus

Students of mine looking for more information should consult the course website http://www.math.lsu.edu/math1431/.
Click "Discussion Labs" and your section number to access the mathematics software MapleTA.
My office hours are Thursdays from 2:00pm to 3:00pm and by appointment.

Frequently Asked Questions

Question: I did the practice problems for Section 1.4, and I got one of the questions wrong, so therefore i received an 88%. Can I just go back into the practice section and redo the problem missed to recevie a 100% for this section without having to rework the rest of the problems? Also does the practice sections count for points?
Also, after working all of the problems in Practice 1.4, I clicked "How did I do?" and it said "Correct" for all of the problems, but when I clicked "Quit and save" it said I got an 88%.
The "practice" homeworks are just that: PRACTICE. They are not graded, and so you don't have to work them over and over to get 100%. Your idea is a great one. To try those that you got wrong over and over until you get them right. May I suggest taking all those problems and printing them out for later. You might find that the hard problems on the practice appear on quizzes or tests or the final!
The "How did I do?" feature only works page by page. It doesn't not check your whole practice homework. It is possible that you omitted one of the problems or that your syntax was wrong somewhere. You can go to "How did I do?" on each page, or you can click Grade once (if there is anything omitted it will tell you before you click Grade again--and you can go back to fix it). Then after you finish your homework, you can "View Details" and see EXACTLY what you got right and wrong. We're in the business of instant math gratification!

Question: I got a 98 percent on my first Quiz; I didn't simplify on the question that asked about the profit function because it wasn't simplified in class. Because of this I don't have a 100. Is there anything you can do?
Each question has its own rules. Some questions ask for exact "Number", some allow you to use calculator mode. In order to prepare for each type of question, I would suggest working the practices.
There is nothing I can do about your quiz, except to tell you to take it again. If you score above a 98, your score will be replaced with the higher grade. Otherwise, you won't lose your high score.

Spring 2006:
Along with three undergraduate mathematics majors specializing in secondary education, I am co-TA-ing Sections 21, 22, and 37 of:

MATH 1431, Business Calculus

Students of mine looking for more information should consult the course website http://www.math.lsu.edu/~math1431/.
Click "Discussion Labs" and your section number to access the mathematics software MapleTA.
My office hours are Thursdays from 2:30pm to 4:00pm and by appointment.

Frequently Asked Questions

Question: I'm in your disscusion group, and I think I have missed more than 3 days. Is the participation grade an all or nothing grade? How does it work?
Participating in 10 lab discussions gives you 5 points for your total grade. Thus each of those 10 lab discussions is worth a half a point.
The purpose of these labs is to make sure you understand the material. By missing labs, you are selling yourself short in this course. Also note that these 5 points may be the difference between a C and a B in this class.

Question: I was just wondering if our quizes are recored the first time we take them. I was just wondering because I was able to log back in and take my quiz a second time.
You can take the quizzes as many times as you'd like; every score is saved. That way you can keep trying until you've mastered the material. This is a good idea if you would like to succeed in the class.
The same goes for the practice homeworks.

Question: Are the homework assignments counted towards my grade in the class? Basically im trying to find out if I need to do complete the homeworks all the way or just do a couple points here and there and check my work.
The homework assignments are called "practices" because they are not graded. The questions, however, are the same types of questions that will be appearing on your quizzes, tests and final. Therefore I urge you to complete every type of problem on each practice assignment. Right now they might seem kind of easy and a waste of time. Be careful, though, because the semester will pick up fast, and if you do not stay on top of your homeworks you will fall behind quickly.
If you go through each homework until you get 100%, you should not be surprised by any of the questions on your quizzes, tests, and final.