Discussed is the status of textbooks in science instruction. Described are ways in which teachers can use the textbook more effectively. A multilevel approach to science textbooks is described. A list of easy-reading science textbooks for earth, general, and physical science is included. (KR)

Described is a teaching model for orienting the teachers to the role of facilitator and resource person during science fairing. Cites steps involved in carrying out a science project, examples of hypotheses, and illustrations of various components of a project. (RT)

Described is a lesson in which the midpoint of the measuring stick (center of gravity), the balance point of the stick (fulcrum) and the arithmetic mean are assumed to be the same point. Provides content background, lesson outline, procedure, evaluation, teacher notes, and diagrammatical representations. (RT)

Instructions are given for a first graders' science and mathematical lesson entitled: "Stone Soup" (based on a popular story by Marcia Brown). Activities include reading, discussing, collecting materials, cooking, growing plants, and observing physical and chemical changes. (CR)

Improvements in the mechanism of the whirlybird used in the Science Curriculum Improvement Study (SCIS) unit "Subsystems and Variables" are presented. Variables which can be investigated using this device are discussed. An illustration of the improved device is provided. (CW)