Rotational Symmetry

The children came back from vacation and jumped right back into the school routine, picking up right where we left off . . . rotational symmetry! Using 9 x 9 square patterns and 90 degree mirrors they discovered the properties of rotational symmetry by turning each grid to check for new patterns. Once this was done they chose the pattern they liked best, made four copies, and worked to find out how many possible arrangements could be made. This process gave each child an opportunity to see the effects of turning and combining shapes that have varying degrees of rotational symmetry. The end results combined 3 different lessons, addition equations equaling 9, a group chart showing everyone's initial work with 9 block patterns, and their final designs. We LOVE math!!!

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