THIS TRIAL EDITION OF A TEACHING GUIDE IS INTENDED TO PROVIDE RESOURCE MATERIAL FOR AN INTRODUCTORY STUDY OF ELECTRICITY AND MAGNETISM, AND IS NUMBER ONE OF A SERIES OF FOUR. IT IS SUITABLE FOR USE AT VARIOUS LEVELS FROM GRADES 2-10. THE FOUR VOLUMES PRESENT ACTIVITIES SUFFICIENT FOR A PROGRAM OF FROM 5 TO 40 WEEKS, DEPENDING UPON EXTENT OF USE AND STUDENTS MATURITY. GENERAL EXPLANATION, SPECIFIC BACKGROUND INFORMATION FOR EACH SET OF ACTIVITIES, CLASSROOM PRESENTATION SUGGESTIONS, STUDENT ACTIVITIES, AND DISCUSSION QUESTIONS ARE GIVEN. THIS DOCUMENT IS AVAILABLE FROM MCGRAW-HILL BOOK COMPANY, WEBSTER DIVISION, MANCHESTER ROAD, MANCHESTER, MISSOURI 63011. (DH)