The activities and games collected in this publication have their roots in different parts of the world. They can bring the vitality of ethnic and cultural diversity into the mathematics curriculum, and can enhance the background of the ethnically "different" child and expose children to the ethnic heritage of others. The materials are classified by geographic region: Africa, Asia, Oceania, Europe, the Mid-East, South America, Middle America, and North America. The latter includes a special section devoted to the Hopi Indians of northeastern Arizona. Grade levels are suggested, although many could be used at levels above or below those designated. The gameboards and activities are designed for immediate classroom use, and require only readily available materials. (MNS)