Counting By . . . uses songs to help children learn how to skip count by 1s, or 2s, or 3s . . . all the way to skip counting by 12s. The 12 recorded songs are sung by children, and each song is unique and fun for kids to sing. The sheet music for each song is also included. Since research shows that music greatly aids in both learning and memorization, this product can be very helpful in teaching kids to skip count!