Beakman pretends to be Gulliver and explains the law of scale by using cubes. He then uses an animated clip to explain what would happen if an ant were to become human sized.

The band sings their song about square numbers!

The CyberSquad cannot make a big enough square with the rods it has available, so Jackie suggests making a triangle. The group successfully forms a triangle and then attempts to make a square with two triangles unsuccessfully. When Digit creates a right triangle, the group tries again to combine the triangles into a square. This time, it is successful, and Jackie explans how to know they've formed a proper square.

Squares are everywhere around you. What does it take to be a square?

Explains what chi-square tests can be used for.