A Mental Math Lesson, Part 2



Tuesday, August 11th, 2015
In my June 2 post, I described how students solved 99 + 17. Actually I described only part of the lesson. Now, in response to a tweet, I explain how I also had students think about one of the important mathematical practices.

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Goldilocks, the Three Bears, and Teaching Math



Monday, August 3rd, 2015
I began a back-to-school session for elementary teachers by asking everyone to write an opening sentence for Goldilocks and the Three Bears. The teachers were surprised by the request—the session was supposed to focus on teaching math. What was the connection?





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