5 sets of color-coded unit addition combinations (equations) slips. 1 set of combinations for each of the 4 Addition Working Charts. Each set supplied in a separate plastic box.
Using the Addition Strip Board, the child practices the sequence of addition combinations 1-9, and begins the process of memorization of the addition tables. The material is...
These rods are designed for individual work at a table. Material consists of 2 sets of 10 wooden rods divided into unit increments by alternating colors of red and blue. The...