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user52817
  • Member for 7 years, 11 months
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63 votes

Why is it possible to teach real numbers before even rigorously defining them?

27 votes

How to respond to “solve this equation” in a basic algebra class

22 votes

Given a 3 4 5 triangle, how do you know that it is a right triangle?

18 votes
Accepted

Is there a more telling name for "Calculus 2"?

18 votes

How to explain that the sums of numerators over sums of denominators isn't the same as the mean of ratios?

14 votes

Why do we teach even and odd functions?

12 votes

A parabolic arc is not semicircular. But students think so

12 votes

Why do we teach the Rational Root Theorem? (high school algebra 2)

11 votes

Why the fear of polynomial long division?

11 votes
Accepted

Should $\varphi$ be monotone in the integration by substitution?

10 votes

How do you explain why perpendicular lines have negative reciprocated slopes?

10 votes

Why would you teach Calculus before teaching Real Analysis?

10 votes

Ideas for explaining 4D and higher dimensions

9 votes

Why should or shouldn't we teach functions to 15 year olds?

9 votes

I want a "true" proof by contradiction of an implication P => Q

9 votes

Why are induction proofs so challenging for students?

9 votes

How to make students comfortable with the use of axiom of choice in analysis

9 votes

How can I explain why numerical integration is easy, but symbolic integration is hard?

9 votes

In what curricula are "rectangles" defined so as to exclude squares?

8 votes

Applications of MVT for Integrals, suitable for calculus 1

8 votes

How to solve the problem of Wolfram Alpha?

8 votes

How does one explain that transformations 'inside' a function operate in the opposite direction than intuition suggests?

8 votes

An intuitive explanation of l'Hôpital's rule for ∞/∞

8 votes

Fear of 3-dimensions

7 votes

Does anyone use the cubic formula these days?

7 votes

How should I answer questions about the purpose of learning math?

7 votes

What's the Deal with Inverse Cotangent?

7 votes

Why does the widespread erroneous definition of "irrational number" persist without being taught?

7 votes

Easy examples of correspondence between global and local, as preparation for Gauss's theorem and Stokes's theorem

7 votes

Why do you need to distinguish between apparently identical objects in probability?

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