This is part one of a two-part manual for teachers using SMSG junior high school text materials. For each chapter, a brief overview is given and sample test questions are listed. Each section contains a discussion of the topic at hand and answers to all the exercises. Chapter topics include: (1) what is mathematics; (2) numeration; (3) whole numbers; (4) non-metric geometry; (5) factoring and primes; (6) the rational number system; and (7) measurement. (MP)