math visuals and manipulatives. This Montessori-inspired addition board is yet another one to add to the pile. The free printable features an 8.5x11 "addition board," and two sets of numbers. The blue number bars go on the left and the red number bars go on the right. The white numbers should meet in the middle to show which numbers are being added together. The board shows the total. The 2D model will store easily in a page protector or math resource notebook.
To download the free printable, click here.