I’m pleased with how this lesson turned out. It’s a good bet when I do very little and kids do all the talking in class.

On grid paper, kids were asked to do the following:

- Draw a quadrilateral. Write one sentence about it.
- Draw a parallelogram. Mark it up. Add words to describe it, if needed.
- Would you say a parallelogram is a special quadrilateral then?
- Are there other special quadrilaterals or special parallelograms? Draw them.
- For each “special” one that you drew, go back and mark or list its essential features.

As a class, they came up with square, rectangle, trapezoid, and rhombus. I then put them into four groups (5 kids in each) — each group assigned one of the shapes and they were to explore all the features and write if-then statements.

We ran out of time, but this is what the groups have thus far. Tomorrow I want them to examine the diagonals of each quadrilateral.