Primary activity
Action plan
In teams of five work on a plan for a game of five-a-side football - try and come up with as many defensive tactics as you can.
Make sure everyone in the team is aware of the tactics before you start playing.
Each team in the class will be either Manchester United , AC Milan, Chelsea or Arsenal your teacher will tell you which team you are.
You are then going to play a mini-tournament .
Get someone to count the goals as you play so you can add them up at the end and find out who was the winner!
At the end of each match the spectators must try and guess what your tactics were and also give them a rating out of 10 to indicate how effective they were.
Which tactic worked best? Why was this? Can you think of a way in which you could use this tactic in a different invasion game?
Do you think David Beckham was just supporting his old club or was he really giving a message to the Glazers? Send us your thoughts by clicking on Have your say and we will put the best comments on the site.
Manchester fans are very angry with the owners of the club - the Glazers, pictured here.
Picture: PA