LD is learning to skip count by 3s. He set up the wagons
and then put groups of three mini-erasers above each
wagon. To get him familiar with the general concept of
multiplication I talk about groups of 3 (1X3 is one group of
three; 2X3 is two groups of three, and so forth) and had him put
the seals under the appropriate wagon wheel.
wagons and seals are available at filefolderfun.com