The product is a vintage 1963 plastic reference sheet for elementary algebra, suitable for intermediate educational levels. Authored by Martin Cohen, the study guide focuses on the subjects of algebra, modern algebra, and elementary algebra. Published by Data Guide Inc in the United States, this quick chart provides a comprehensive reference for students studying mathematics at the elementary school level. With a personalized approach, this data-guide helps students navigate through complex algebraic concepts in an easy-to-understand format.