SteckLÜK - The learning game with colorful self-checking. Featuring 30 age-appropriate matching exercises. Available with 5 card sets for kindergarten, preschool, or elementary school as a supplement. Designed to promote careful observation, concentration, logical thinking, German, and math. Easy for children to use, with instant solution checking, suitable for home and on the go. Here's how it works: There are two rows with 6 pictures each. One picture from the top row and one from the middle row match together. The task is to find pairs. The 6 pairs are marked with colored frames. For example, you place the blue frame on the picture in the middle row that corresponds to the blue-bordered picture in the top row. Once all pairs are found, color checking is done by pulling the slider down: everything is correct if the colored frames match the colored squares.