This bundle includes grades 5, 6, 7, and 8 from the Math Mammoth curriculum.Each grade level consists of two student worktexts (A and B; written directly to the student), answer keys, chapter tests, end-of-year test, additional cumulative reviews, and a versatile worksheet maker (Internet access required).Math Mammoth focuses on conceptual understanding. It explains the "WHY", so children can understand the math, not just learn "HOW" to do it. Concepts are often explained with visual models,