Castle

Rules

Divide your class into 4 teams
Divide your gym into 4 sections with each team only staying in their section
Each team builds a hula-hoop castle
Each team gets 3-4 balls
Each team throws balls to knock down other teams' castle
Once a castle is down, that team cannot attack (throw balls) to other castles until the castle is put back up
Their is no end to this game, it just keeps going until you decide to end it.

Layers

Give each team a set number of lives on how often they can rebuild their castle
Add an obstacle on one side of the castle
Combine teams to have 2 castles for one team
Set a time limit on how often a team can knock over castles
Catch a ball on the full and the thrower receives a penalty (sit out for a minute, 10 jumping jacks, etc.)
There are so many layers you can throw in there to amp up the challenge, get creative!