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What’s this kids next multiplication strategy? How would you help him get there?

  • Michael Paul Goldenberg

    Michael, I just reviewed a manuscript submitted to a major journal for math teaching that claimed that 4 square feet is equivalent to 48 square inches. And the subject was on key concepts in teaching area. . . I need some Unboggle My Mind juice.

    • Michael Paul Goldenberg

      Would have been fine had they discussed how that is a predictable student error, of course. 🙂

  • “instead of adding two copies at a time, how about ten?” I’m not sure there’s much else to say to get one step closer to understanding how place value can help you more.