Filter by: Content type: ALL Problems Articles Games Stage: All Stage 1&2 Stage 2&3 Stage 3&4 Stage 4&5 Challenge level:
Put a number at the top of the machine and collect a number at the bottom. What do you get? Which numbers get back to themselves?
What is happening at each box in these machines?
Alf Coles writes about how he tries to create 'spaces for exploration' for the students in his classrooms.