Walt: Understand money as decimal numbers.
In this presentation, we had to pick a decimal number, from 0 to four. I picked 3.9. I showed 3.9 from money. I putted 3 one dollars, and 1 50 cent, and 2 20 cents. We also had to show the number we had picked on the number line. Then we had to show the number in the tread house. It's got a one's column, a tens column, hundredes column, and a tenths column.