MAGNET MATH MAGNETIC DEMONSTRATION
Designed to help you quickly build a hundred chart...then easily build on to teach up to 120! Features large quadrants--no need for time-consuming assembly of strips. Includes 20 frames for highlighting individual numbers or number patterns, 20 cover-up squares to make mystery numbers, and unique t-shaped more/less piece! And nope, we didn't forget the zero! Oversized, bold, and colorful so it's easy to see on your whiteboard. Dry-erase surface too.