Challenge them to make a design with their shapes. Each pupil now joins up with another person and combines to make a new shape. Now pupils join with another pair and create a new shape with the 20 shapes they now have.
Groups share and talk about the shapes that they have created.
Write equations or have pupils write equations on flash cards. Give out five cards to each group. Using the appropriate number of pupils for each equation challenge the pupils to mime out their equation to the rest of the class. The group who guesses the equation mime has the next turn. The toy must be able to slide down a wire spiral with ease.