This free math video shows an important concept to get down, especially for when it comes time to do long multiplication or division. Lots of practice in giving the “real” names for a certain number of tens or telling how many tens is in a number is essential for understanding more complex elementary school math.
Cuisenaire Rods help make the concept of place value, which is often very abstract for children, more concrete and understandable. They can visualize it. They can feel it. They can much more easily internalize the concept.