The stated purpose of this pamphlet is to suggest simple, natural, interesting experiences in children's play that have science implications. It tells how the teacher may capitalize on the innate curiosity of children by incorporating science discovery in daily classroom experiences. This how-to-do-it manual directs map-making and activities for developing knowledge of trees, birds, rocks, minerals, and soil. A chapter on shadows and weather contains seven activities to stimulate learning. Other chapters deal with insects, fish, plants, and animals. They include not only suggestions for related activities, but instructions for their fruition. The pamphlet is addressed to elementary teachers and contains a bibliography. (DO)