6_7_07

Begin by sharing a few more trades with the shape from yesterday -- how can we make trades so we have more blocks in the shape? Get to the rule that if you use bigger shapes you need fewer of them and if you use smaller shapes you need more of them.

Everyone works on the same shapes, filling with more and fewer blocks.

For sharing, begin a chart that shows shape "equations" or trades. For example, a hexagon = two trapezoids. Or, a trapezoid = a rhombus + a triangle.

Begin a conversation about halves/thirds??