The class is broken into groups of no more than five students. Each person in the group has the opportunity to throw three bean-bags (or similar) into a designated area (a hoop is often used for this purpose).
The person throwing the bean-bags is blindfolded. After each throw, other group members provide instructions to help the thrower locate the hoop with their next throw. These instructions can only take the form of compass directions (North, South, East, West, or other derivatives) and a distance in metres or centimetres.
For example, if a person throws the bean bag three-metres short of the hoop, their group members will say 'South, three-metres' to indicated where the bean-bag landed in relation to the hoop.