I didn't actually get around to this as maths coordinator but planned to. I was going to set up equipment around the school. It would include the sandpit, water table, dice, playing cards, counters, dt equipment, paints, play dough etc (basically borrowing lots from nursery!) I would give teachers a list of objectives from their year group and they would go round the equipment looking at which objectives they could cover using that equipment. The idea came to me when I observed the amount of maths nursery children were doing and I wanted to persuade teachers through the school that maths could be practical.