To develop cooperation and teamwork skills, you only need a playground/empty school hall and a big ball of string.
Stand the class in a circle. Hand the ball of string to the first person, who rolls it across the floor (keeping hold of the end) to someone on the other side of the circle. That person rolls it to someone who hasn’t had the string yet, and so on, until everyone has caught the string once. You will have formed a large ‘spider web’ with the string. (It is important all children only catch the string once).
The last person to end up with the ball of string has to trace it back to the first person, climbing under and over the threads of the web, with the others lifting and lowering their threads to help him.
They must listen to each other across the circle as they figure out how to undo the web.