The Power of Base Tin Materials

In early grades, we don't see kids struggle quite as much with no base tin materials. It's when we hit decimals that all o sudden, we've reunitized. So let's shift from telling here is what they are to asking if this cube, and so if you think of the large cube that has one thousand of those little unit cubes in it,. If this cube represents one, then what is this flat of a hundred of those units? How does howdos relate?