This cube for (a + b)3 provides the basis necessary for the sensorial construction of higher powers of the same binomial: (a + b)4 and (a + b)5. Contained in a hinged wooden box...
The Bank Game reinforces the concept of long multiplication. The children assume different roles as they perform the game exercises. Includes plastic number cards and role...
The wooden tray contains 9 geometric form cards for use with the three basic shapes of the Demonstration Tray. Each shape is represented by a solid, a thick lined and a thin...