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16 votes
2 answers
684 views

Let P be a polygon

5 votes
2 answers
79 views

Should/ how should I help students reframe their negative thoughts about their own mathematical abilities?

42 votes
25 answers
10k views

Good, simple examples of induction?

3 votes
5 answers
178 views

What value is there in requiring students to declare the dimensions of an answer when it is already clear from context?

9 votes
8 answers
3k views

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

3 votes
2 answers
533 views

How to internalize solutions/proofs to theorems and exercises?

13 votes
1 answer
88 views

Policies and practices for supporting students in crisis

10 votes
6 answers
604 views

Should Euler's formula $e^{ix}=\cos x+i\sin x$ be seen as a definition rather than something to prove?

2 votes
3 answers
419 views

Reduction of fractions

18 votes
4 answers
1k views

Educators, what resources have you built to better serve your students?

9 votes
3 answers
149 views

How do you know when a textbook is too difficult for you?

1 vote
1 answer
29 views

What are specific set of tools Partial Differential Equations provide in studying a system?

3 votes
3 answers
389 views

About the word "limit" used in calculus

0 votes
2 answers
267 views

Did Americans, before new math came in to schools, really say, 'three from two is nine carry the one", instead of borrowing ten from the tens column?

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