Versatile mats work with either dry - or wet - erase markers for years of use. Supports state and NCTM Standards for creating and interpreting mathematical representations. Allows students to draw shapes, plot coordinates, and create bar and line graphs in geometry and algebra lessons, plus display science data. Features graph squares on both sides and labeling lines on reverse side only. Eco - friendly mats measure 17"L x 11"H each and reduce the need for photocopying. Grades K - 3.