2022 Community Moderator Election
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The community moderator election is currently in the nomination phase.
Please cast your vote by November 7!
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Top new questions this week:
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(I’m not sure if this counts as on-topic for this StackExchange community. If not, please let me know and I’ll delete the question!) When teaching math in front of a class, I often use a blackboard …
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While listening to recordings of Calculus $I$ lectures, I noticed that some students get confused between showing that “some object $x$ is a solution”, and showing that “every (…
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Terry Tao describes 3 stages of one’s mathematics education on his web blog. 1: Pre-rigorous 2: Rigorous 3. Post-rigorous I know how one can progress from stage 1 to stage 2 (this simply can be done …
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Greatest hits from previous weeks:
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I found it difficult to explain the difference between the fraction a / b and the ratio a : b. This subject is for pupils of grade 5. So is there a real difference between them and how to explain the …
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Look at the following example: Which picture has four apples? A B C D B is the expected answer but should not the correct answer be BCD? Technically if a set has exactly $m$ elements, then it …
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I am curious why students who take calculus in high school often do so poorly in college calculus. I am an instructor at an engineering college and I’ve noticed a decent number of students who have …
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I posted this question earlier today on the Mathematics site (math.stackexchange.com/q/3988907/96384), but was advised it would be better here. I had a heated argument with someone online who …
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It’s common for majors in biology to take calculus courses, and many calculus textbooks (and calculus professors) try to cater to these students by including applications to biology. My question is, …
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I am teaching a class on linear algebra to sophomore and junior science majors, and am having some trouble illustrating the difference between $\mathbb{R}^n$ and an n-dimensional vector space. The …
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I would say it is not the Fundamental Theorem of Calculus, but rather some notion connecting limits and continuity, perhaps the $(\epsilon,\delta)$-definitions of limits and continuity. But I would be …
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