Can 1/3 + 1/3 = 2/6? It seemed so!



Thursday, March 22nd, 2018
I thought I was on the right teaching track using real-world contexts to talk about fractions with a class of fourth and fifth graders. Then a surprise occurred! I’m still mulling over what I could have done. I’d love your thoughts.



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One Lesson, Two Pedagogical Mistakes



Monday, January 1st, 2018
I believe strongly that mistakes are learning opportunities. At least that’s what I regularly tell students. But it sometimes feels different when the mistakes are mine . . . and especially when they are pedagogical mistakes that I make while teaching. That happened to me recently when teaching a lesson to fourth graders.



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Preparing and Planning: How I Get Ready for Teaching a Math Lesson



Monday, March 27th, 2017
A friend and I were talking recently about how much work we put into planning lessons. Even after all these years of teaching, I have to think through lessons as carefully as possible, both about the logistics and about the mathematical thinking I want to keep in mind and support. Here’s an example.


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