Boys and girls of all ages love to color. The simple coloring mode is suitable for the smallest of children, including those of kindergarten and preschool age. These include simple and recognizable images that are easy to color. If the child selects the wrong shape, then they will be prompted with the correct number. Therefore, the picture will always be colored correctly, and the child will quickly memorize the numbers. Children can choose to color by geometrical figures and pictograms in addition to numbers. A child can easily distinguish a square from a circle, diamond, and triangle.