Investigations Blog

Robot Fingers and Multiplicative Structure

In a blog post over a year ago, I wrote about the importance of using story contexts to support students in developing mental images of the operations. In that post, I concluded: “Along with pictures, drawings, diagrams, equations, and physical models, story contexts are critical parts of a student’s repertoire of representations.  In fact, it is often the case that three kinds of representations are in play: a numerical representation, a picture or diagram, and a story.  Moving among these to...

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