Interactive Math tool for Addition and Subtraction

Pick up in Arbour Lake NW. Actually a really cool educational toy allowing kids to visually see if their answers to addition and subtraction questions is correct. When you have the right answer (by hanging the weights in the correct locations on the opposite side) the balance will be horizontal. Eg. If you put a weight at the 10 position on the left, kids can see all the different ways they can make 10 on the right - 10, 9+1, 8+2... Allows them instant feedback on their answer and the ability to trial and error to achieve the correct value. Comes with 12 weights. Pet free and smoke free home