Teach your children not only how to do algebra, but why they're doing it! Using manipulatives, concrete and abstract reasoning, and mathematical thinking, Quine moves your students beyond simply learning facts and memorizing formulas as they explore algebraic principles, equations, variables, polynomials, the Pythagorean theorem, and more. Ages 12 and up. Includes answer key. 333 pages, softcover from Cornerstone Curriculum.