This manual was designed for use by teachers using the School Mathematics Study Group's (SMSG) special text series for low achievers in grades 7 and 8; it covers chapters 10 through 18 of that series. The manual begins with introductory material describing characteristics of low-achieving students and suggested instructional approaches. Testing policies, classroom routine, and necessary materials and supplies are also discussed. For each chapter of the text this volume lists and describes objectives, suggests special approaches where desirable, and provides solutions to all problems posed in the student text. (SD)