Class 301 has won a real truckload of number cubes. Fractions Frank, the caretaker, has found some boxes that hold different amounts of cubes–ones, tens, hundreds, and thousands. The children see how the smaller boxes can all fit into the larger ones. They put these groups in columns to create a numeral. And just when they think they are done, another truck pulls up and they have to start again! Simple sentences and easy-to-understand exercises help make learning about place value understandable and fun.