Children learn to visualize numbers and count with this one-of-a-kind hand2mind color-changing abacus. Multicolor beads change to white as children slide them across each rod, helping them practice counting and patterning as well as basic addition and subtraction. The included guide offers six teacher-developed activities. Color-changing abacus helps children develop basic math skills. As multicolor beads change to white when sliding across the rods, children learn to visualize numbers and patterns. Durable blue plastic frame is built for long-lasting use. Package includes one color-changing abacus and an activity guide with six teacher-developed activities. Recommended for kids ages three and up