Focused especially for use by students on the middle-to-high school level, this quick-reference source is helpful to anybody who needs to know the meaning of math terms in clear, simple language. An opening alphabetized Wordfinder index contains more than 1,000 words, and directs readers to the page where the word is defined. Where needed, the definition is accompanied by examples. The book also features helpful illustrative diagrams--or instance, a full page demonstrating the geometry of the circle, another page showing quadrilateral geometric shapes, and still others showing ways of charting statistics, measuring vectors, and more. Here is an imaginative new approach to mathematics, a great classroom supplement, a useful homework helper for middle school and high school students, and a reference book that belongs in every school library.