Math on Call is a unique teacher resource that all middle-school teachers and students should have on their book shelf for help with homework assignments, test review, daily assignments, and cooperative learning. It includes math rules, study tips, and even information about databases and spreadsheets. It provides a glossary of definitions of mathematical formulas and math terms, math procedures, and rules. It provides numerous examples with detailed explanations, easy-to-follow charts, tables, lists, tips for studying, taking tests, and problem-solving. When you are not sure how to explain a Math concept or need a simple but accurate way to explain a concept to a student this is a wonderful reference tool.