Didax Educational Resources Unifix Underlay Cards

The Unifix Pattern-Building Underlay Cards are used with the Operational Grid and Tray. These 12 cards help develop basic math concepts through a variety of self-correcting activities. The cards are printed in designs of red, blue, yellow and green and offer additional practice in matching and forming symmetrical designs. Unifix cubes, grid, and tray sold separately. These 12 cards help develop basic math concepts through a variety of self-correcting activities. The cards are printed in designs of red, blue, yellow and green and offer additional practice in matching and forming symmetrical designs. Cubes, grid, and tray sold separately.