This is an ingenious grid, 7 ¾" square, that has vertical and horizontal channels moulded into soft, pliable plastic. The material and design of this grid allow children to continually fold and unfold again and again to find the correct answers to their addition problems with sums to 20.
How to Use:
The numbers that run across the top of the grid are in orange as are the numbers that run down the far left-hand column. These numbers act as the addends in addition. In subtraction, these orange numbers act as the subtrahends and differences.
Look along the top row and find the 4.
Fold the table from top to bottom, vertically, under the number 4.
Keep the table folded and look down the left-hand column until you find the number 3.
Fold the table up, horizontally under this row.
In the right-hand corner, find the answer, 7!!
Comes with a great activity guide and suggestions for class activities and practice. A great visual and tactile activity and a quiet fidget with academic implications.