PREPARED UNDER THE SPONSORSHIP OF THE SCIENCE CURRICULUM IMPROVEMENT STUDY, THIS TRIAL EDITION OF A TEACHER'S GUIDE FOR A UNIT ON ENERGY IS INTENDED FOR USE AT THE FIFTH AND SIXTH GRADE LEVELS. THE UNIT IS DESIGNED ESSENTIALLY AROUND PUPIL-CENTERED ACTIVITIES WHICH REQUIRE BOTH QUANTITATIVE AND QUALITATIVE OBSERVATIONS. THE ACTIVITIES IN PART I OF THE STUDENT MANUAL INVOLVE INVESTIGATIONS AND OBSERVATIONS DEALING WITH ICE CALORIMETRY, AND THOSE IN PART II INVOLVE ENERGY OF COMBUSTION AND HEAT TRANSFER. PARTS III AND IV OF THE UNIT ELABORATE UPON THESE IDEAS, AND INVOLVE CHANGES IN PHASE. THE GENERAL INTRODUCTORY SECTION OF THE GUIDE INCLUDES MATERIAL ON (1) THE THEORETICAL BACKGROUND FOR THE UNIT ON ENERGY, (2) TEACHING TECHNIQUES, AND (3) A MATERIALS LIST. EACH CHAPTER TREATS A SEPARATE ACTIVITY, CORRESPONDING TO THE STUDENT MANUAL, AND INCLUDES (1) A MATERIALS LIST FOR THE SPECIFIC ACTIVITY TO BE STUDIED, (2) TEACHING SUGGESTIONS, (3) ADVANCE PREPARATION REQUIREMENTS, (4) DISCUSSION OF PROCEDURE IN THE STUDENT MANUAL, (5) PREPARATION DIRECTIONS FOR THE NEXT ACTIVITY, AND (6) SUGGESTED OPTIONAL ACTIVITIES. THIS DOCUMENT IS AVAILABLE FROM THE SCIENCE CURRICULUM IMPROVEMENT STUDY, UNIVERSITY OF CALIFORNIA, BERKELEY, CALIFORNIA 94720. (DH)