Stack the pegs high on the crepe rubber train cars, and use them to practice counting--each numbered car has the coordinating number of holes for pegs.
Puzzles
Each train car has a number puzzle inside. Plus, the train cars connect like puzzles to make one 20-inch long train. Lay it flat or stand it up.
Numbers
Number Express helps with number recognition from 1 to 5, as well as counting.
