Partial Product Multiplication

If I could, I would give it -0 stars. This is a robbery, it is useless,it does not say if the result is wrong.

For those of us who did not use the partial product method when we learned how to multiply large numbers this app is very helpful. It helped me understand the algorithm. I was better able to explain it. My third grade son was having some trouble "seeing" how the process worked and this app broke down the steps for him and gave him visual cues. After just one session he felt that he did not need the color cue anymore and the number prompts were enough. It is an expensive app, but given the level of frustration over homework that has been diffused in my house it was well worth the price. My son is feeling much more confident now. I can see this app also being very helpful in a classroom to give support to visual learners and to those who need help remembering the steps of the algorithm.