Write a good selection of numbers on the board (depending on the age of your children) and divide the class into 2 teams facing the board.

Stand at the back of the classroom and call one student from each line over to you. Whisper a number from the board to the students, who then have to run back to their team and whisper it to the next person in thir line.

The whispers carry on down the line until they reach the person at the front who has to find the number, slam it with their hand and shout the number. This game can also be used with any vocabulary being used (fruit, family etc) simply by putting the pictures on the board.

A great game for all ages which has never let me down!