Divide By Zero

I took Maria’s MathType vs. LateX equation challenge. Partially out of curiosity for how long it would take and also to put out an example of how I use emacs and LaTeX on a regular basis in my planning and in the creation of materials. If you’re having trouble falling asleep, let me recommend this [...]

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Here’s what I did. I taught this lesson today, and I had mixed results. For the record I’d say that kids in the second group that got the lesson where really into it, whereas the first group gave it a “so-what-else-did-you-cook-up-for-us?” rating. I started this post thinking I’d tell you what I did, but I [...]

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Thanks to Dan for posting a great setup and a problem that turned out interestingly. I worked the problem on paper last night. Then this morning, I came in and re-worked the problem with a few students, and finally read Alex’s algebraic solution. The handout I made from last night is below. Ws Office Boxcorner [...]

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After reading Kate’s Error Finding in Geometry Proofs post which I highly recommend. I had two ideas. First, that I will be designing some similar activities for my class soon. And, second, that there’s a lot of value in this type of post with the follow up reflections. I’ve recently hit on two activities that [...]

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