[method] the game let baby recognize red orange yellow green blue... And five colors; let your baby practice beads count, dial a number, and then a head count of each color beads have several skilled, can let the baby in 2, 3, 5 units of exercise group let the baby know; and digital +, -, = and usage; addition and subtraction of the beads, such as dial 2 beads, let the number of children count, dial over three beads to calculate how many, can be repeated practice; an equation, let the baby to find the same color first out then, let him right out of the number of beads. The middle of a plate is less than 10. Negative positive subtraction is within 10 of the addition.