This is one of two teacher's guides for a three-year integrated biology, chemistry, and physics course being prepared by the Portland Project Committee. This committee reviewed and selected material developed by the national course improvement groups--Physical Science Study Committee, Chemical Bond Approach, Chemical Education Materials Study, Biological Sciences Curriculum Study and Introductory Physical Science--and added material written especially for the project. This guide covers Part I, "Perception and Quantification" and Part II, "Properties of Matter." These themes are developed through outlined student activity. Extensive explanation is provided for the teacher, so that he is aware of the purpose of each activity. (GR)