From the series Ripples. It's wintertime in the U.S. and Canada, and children are playing everywhere. While children in the north streak down snowy hills on sleds and skis, youngsters along the Southern Atlantic Coast play on a hot sandy beach.The flat lands of the Great Plains provide miles of room for bicycle tag. but the con-fined spaces of a crowded city demand games like alley dodge ball. A snake is likely to become a pet for the child born near theEverglades. but not for a child who lives where snakes are not part of the environment. In these and other ways the program relates children's play to the places in which they live.