The Algebra resource book for fifth to twelfth grades provides practice in these essential algebra skills: -variables -polynomials -radicals and roots -linear equations -quadratic equations This 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.