Overhead Projector Games

Abstract

Class team games are a useful method of promoting mental arithmetic and of injecting a little fun and excitement into the mathematics lesson. A single focus for such games is an overhead transparency with the numbers 1-100 in a 10 x 10 array, figure 1. Described here are a number of suitable games, devised by a college class of pre-service teachers, for use with the 1-100 on the overhead projector (OHP).