Soccer is an international sport and students really understand the yellow card / red card system. Make yourself a card and use it as a great classroom management tool!
Yellow is a warning. Make sure to make eye contact when you give it . But don’t make a big fuss either. Red card is a Time Out. Create an area in the classroom where you can send a student to be out of the class group. When you think the appropriate time/penalty has been done – simply wave the student back. Make sure to put some books or manipulatives in the time out area.
This works!