The Spectrum(R) Geometry for sixth through eighth grade features 128 pages of sequenced instruction, practice, and reinforcement of middle school geometry concepts. This standards-based workbook focuses on important geometry topics like points, lines, rays, angles, triangles, polygons, circles, perimeter, area, and more. Easy-to-follow instructions, tests, and an included answer key prepare students for math success as they develop critical problem-solving skills. The best-selling Spectrum series is a favorite of parents and teachers because it's carefully designed to be both effective and engaging––the perfect building blocks for a lifetime of learning. UPC: 044222243470