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Mr Pie
  • Member for 3 years, 9 months
  • Last seen this week
  • Melbourne VIC, Australia
39 votes
5 answers
3k views

Effects of early study of advanced books

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38 votes
13 answers
19k views

Why do we teach complex numbers?

32 votes
20 answers
5k views

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

31 votes
10 answers
2k views

Should students be asked to use more than one notation for the derivative in an introductory calculus class?

30 votes
7 answers
1k views

When $-x$ is positive

23 votes
6 answers
783 views

How can you explain to students that they should not use the same variable in an integrand and in the limits of integration simultaneously?

20 votes
12 answers
3k views

Explaining the order of negative integers

18 votes
7 answers
1k views

How can I motivate the formal definition of continuity?

15 votes
8 answers
3k views

How should I introduce the Chain Rule

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