This StoryBots song will make you think about the rectangles all around you. Think of some rectangle-shaped thing as you listen to this fun song!

The Sad Man teaches how to use worms to calculate the area of a rectangle.

The kids use multiplication and their rulers to calculate the area of a rectangle in centimeters.

The Sad Man and the kids examine the properties rectangles have.

The Sad Man shows how rectangles can turn into triangles with diagonals.