Playing with bambinoLÜK is that simple. Easy exercises to promote accurate observation, comparison, and categorization. Designed for children to solve on their own. Ideal for all kids who enjoy discovering basic concepts of quantity and size. With immediate self-checking that leads to learning success with ease. To work with this exercise book, you will need the bambinoLÜK solution device. Observing accurately, comparing, categorizing, checking, and solving.