When Number 4 jumps into Flatland, he becomes a square. Meet the rest of the shapes by counting the sides.

Monster Math Squad determines how many sides does a triangle, square, and pentagon have.

The shapes introduce themselves and their characterisitcs to the square.

Bad man goes over what kind of shapes are parallelograms. He introduces the children to rhumbuses and squares.

The Bad Man explains more about the three triangles.