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Home : 2004 : Jul : 3

    symmetry
    By Margaret

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    I know it's too late now, but I have a really fun way of teaching symmetry and congruency with my second graders. I have collected a lot of cookie cutters, some of which are symmetrical and some not. I have a recipe for "Play Clay" that I ask several mothers to make for me, and I have cut 1" dowels into 6" lengths. I give each child a piece of waxed paper, a handful of the clay, and a dowel. My children sit in groups of four, and I place a selection of cutters with each group. I let them "play" with their materials first to get that out of their systems, then we begin with cutting out shapes and exploring to see if they are symmetrical, and therefore congruent if flipped and placed on one another. They DON'T forget!! :o)

    I also have a collection of mirrors and many pictures. I let them explore placing the mirrors on the pictures, etc. Another fun way for them.



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