Steven Gubkin's user avatar
Steven Gubkin's user avatar
Steven Gubkin's user avatar
Steven Gubkin
  • Member for 10 years, 1 month
  • Last seen this week
  • Cleveland, Ohio
47 votes

What do you do in order to drag out lectures?

46 votes

How do I show students the Beauty of Mathematics?

43 votes
Accepted

Intergration by differentiating will get you $0$ marks - but how to explain why?

42 votes

Why do we teach even and odd functions?

41 votes

How to explain that a negative number multiplied by a negative number is a positive number, and that $-(-x)=x$?

41 votes

Do I really need to cover solids of revolution in my Calculus I class?

40 votes
Accepted

f(x+h) in the difference quotient

37 votes

Why is differential calculus often presented before integral calculus?

35 votes
Accepted

Epsilons and deltas in a first calculus course

33 votes

How can I familiarize elementary school students with infinities larger than $\aleph_0$?

31 votes
Accepted

Why is the concept of injective functions difficult for my students?

31 votes
Accepted

Math Proofs - why are they important and how are they useful?

30 votes
Accepted

Explaining why volume of cone is a third of cylinder

29 votes

Should I be teaching point-slope formula to high school algebra students?

27 votes

A visualization for the quotient rule

23 votes
Accepted

How do you explain concavity of a polynomial without any calculus?

22 votes

Why we don't normally teach chord, versine, coversine, haversine, exsecant, excosecant any more?

22 votes
Accepted

Students strictly follow the steps and notations in sample problems without understanding them

22 votes
Accepted

Motivating the study of matrices

21 votes
Accepted

Effectiveness of Requiring Students to Repeat Proofs Presented in Class

21 votes
Accepted

Are there any proofs of Euler's Formula that do not rely on calculus?

21 votes
Accepted

Can this be a better way of defining subsets?

19 votes

Why are hand waving arguments made in textbooks of undergraduate analysis and how should readers deal with them?

18 votes
Accepted

If I take Modern Analysis next year, will I be prepared to teach multivariable/vector calculus?

17 votes

Combative students in proofs classes

17 votes

Is there a canonical name for a polynomial-like expression allowing for negative powers?

17 votes

Is This Trick Helpful?

17 votes
Accepted

Midterm in Mathematics Courses

17 votes

What are some good low-prerequisite examples for the heuristic advice "If you cannot prove it, prove something stronger."?

16 votes

Should my 8th graders see a proof of the Pythagorean Theorem?

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