What better way is there to learn about something than to hold it, examine it, and take it apart? The Match Box Project (Materials and Activities for Teachers and Children) loans to schools a series of boxes which contain materials, equipment, supplies, and activities designed as a unit to foster the teaching/learning of specific subjects at the elementary school level. Musical Shapes and Sounds is designed for grades three and four. This Match Box gives children the chance to study instruments first-hand, to begin thinking about their sizes and shapes, the variety of sounds they make, and how these are related. The guide presents a two-week program for using the Box. It describes the materials: the instruments and extra strings, reeds, and mouthpieces; 20 pamphlets; clothesline and 20 clothespins; photos, record, film and riddle book. The guide also describes the activities planned and offers a flexible time schedule. The teacher may follow the program completely or adapt parts of the Box to a class's particular needs and interests. The program will lead the children to ask questions. The authors hope that, in time, this interest will grow and develop. (MM)