Hang to visually demonstrate number and operations skills, or lay flat for kinesthetic center activities. Use with a wet-erase marker to highlight numbers.- Shows numbers -25 to 25 horizontally on one side and vertically on the reverse to prepare students for the orientation of Cartesian coordinates in algebra and geometry- Reinforces positive and negative numbers, operations and algebraic equations- Includes 2 magnetic arrows, 2 inflatable vinyl number cubes (5" each) and 10 double-sided, reproducible Activity Cards with answer key- Thick vinyl number line with hanging grommets measures 48" L x 8" H; use with wet-erase marker to highlight numbers- Grades 4+