Cassandra looked out the window. She saw a boy moving down through the air.

The boy moved all the way down to the ground. He pushed off the ground with his legs. Then he moved up into the air.

Cassandra moved to the side to see more. She saw that the boy was playing on a see-saw with a girl.

As Cassandra watched, the boy and girl kept moving. Cassandra wrote down their positions in a table.

Positions While Playing See-Saw
Girl up down up down up down
Boy down up down up down up

Use Cassandra's observations to predict what happens next.
If the girl pushes off the ground with her legs, she will and the boy will