Time: 10 - 15 minutes
Each group should have 24 or so apples of various colors: red, yellow, green
Arrange children into groups of 3 to 6, with at least one adult supervisor per group. Give each group 24 apples. Children must work together to sort the apples by color, then arrange each color in a row according to size, from smallest to largest. Let each child have an apple to take home.