Take Photos of Circles
Whenever your child finds a good specimen, take a picture of it for your circle collection. Keep adding to it as she spies the inside of a dried-out sunflower or he points to a bird’s nest in a tree.
When you have an opportunity, point out other shapes within circles. If your child sees a bicycle tire, for example, ask what shape the spokes make inside the circular wheel. (triangle) Or, have your child drop a pebble in a puddle to create rippling circles within circles.