Decanomial Square

Posted on March 22nd, 2011, by Trina

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  1. Ashley Says:

    how much time did that take?!? ;) And what is the purpose?

  2. Amy Says:

    I like it! Were you proctoring a test? Or do you have some project planned??

  3. Trina Says:

    I got home late last night, exhausted from a very long day, physically and emotionally. This was the only picture I’d taken yesterday, and it was easier to post that than to come up with something else to take a picture of at bedtime. :)

    I observed in both kids’ classrooms yesterday morning, and this is what Gosling did while I was there. It’s a tactile representation of a polynomial mathematical expression containing 10 terms. The squares go diagonally from the red 1×1 to the gold 10×10. It’s basically a visual times table for 1-10. The colors correspond with other materials in the classroom (he told me 1 is always red, 10 is always gold, 7 is always white, etc), and the sizes align with other manipulatives they use daily. Later, they’ll do a similar project with graph paper and see how many squares are contained in each piece, and that will be another reinforcement of the multiplication table.

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