The Spectrum(R) Algebra Workbook for sixth through eighth grade features 128 pages of sequenced instruction, practice, and reinforcement in geometry, algebra, and probability for grades 6 to 8. --This standards-based workbook focuses on middle school algebra concepts like equalities, inequalities, factors, fractions, proportions, functions, and more, and helps students build problem-solving skills for lifelong math success. An answer key is included to help parents and teachers accurately monitor students’ progress and feel confident in their competency. --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: 044222243494