Groups carefully design and produce their own board game. These games are then played and evaluated by other class members.
This involves developing ideas from 2-dimensional shape-and-space, together with basic concepts of probability. Students play a number of games which have been devised by someone else, discover faults and shortcomings and suggest improvements.
Students share their ideas within groups, then decide on a rough plan for their own game. Each group of students produces a detailed design, makes it, and checks the finished version. The groups exchange games and test them. When they are returned, each group re-assesses its own game in the light of another group's comments