Ms. Simian explains to Gumball's class the Butterfly Effect after the students ask about letting the class butterfly go.

Bill provides a brief background on the history of measurement and explains why humans developed standard units of measurement. He explains how the meter was developed and talks about the simplicity of the metric system.

Bad man tests the children on their ability to find circumference.

Digit and Matt make stew for a cooking competition, and Digit explains how he will use a timer to cook it for 5 minutes. When Buzz steals the timer, Digit panics, but Matt explains how they can use a clock to cook the stew for the correct amount of time.

We meet number two, and he shows us all the things that two can do.