The Algebra resource book for fifth to twelfth grades provides practice in these essential algebra skills:-variables-polynomials-radicals and roots-linear equations-quadratic equationsThis Mark Twain math resource offers clear explanations, practice exercises, and unit review quizzes. --Mark Twain Media Publishing Company specializes in providing engaging supplemental books and decorative resources to complement middle- and upper-grade classrooms. Designed by leading educators, this product line covers a range of subjects including mathematics, sciences, language arts, social studies, history, government, fine arts, and character.