Composing and Decomposing Numbers
One of the reasons I love teaching math is that it is so much different now than when I was in elementary school (Google paleolithic age for a frame of…
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Be Wise…Subitize!
Okay, I realize the title of this post is very corny, but it got your attention so I can talk about one of my favorite subjects–subitizing. My sister will say…
CRA for Adding Three Addends
I talk a lot about teaching through the concrete → representational → abstract (CRA) sequence of instruction. Over the years, I’ve seen what happens when students are pushed to the…
