Build the tower up, or nest them by size. Great for practicing comparative concepts such as bigger/smaller. Insert the colored shapes into their corresponding holes to learn more about sorting and hand-eye coordination. How many ducks are there? The blocks pictures feature the numbers 1-5, which makes counting fun for children. Featuring numbers 1-5, and upper and lower case letters ranging from A  to E, learning your ABCs and 123s has never been so fun!  Encourage kids to develop independent play skills, or to work together with friends and family.