Children are tested by Bad man to identify parallel and perpendicular edges and faces.

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

Numbers 10 and 6 discover the joys of being 16. As the number 16, they impress number 4 as they show all the ways they can be a square.

The shapes introduce themselves and their characterisitcs to the square.

Number 12 sings about the different shapes and arrays that they can become.