Like magic, Think-Its Math Mats take the drudgery out of learning math;Using an ordinary wipe-off marker, a child writes answers to questions and checks the answers by pressing a thumb over a concealed answer box;The child's body heat dissolves embedded crystals and the correct answer is mysteriously revealed;These 2-sided mats are reusable so a child can practice addition in class, or when traveling.

• Mighty Mind Think-Its Magic Math Mats - ADDITION (#44029)

Mighty Mind Think-Its Magic Math Mats - ADDITION (#44029)Leisure Learning