Visual mismatch

I wont use this app with my students because on the subtraction problems there is a visual, and thus confusing, mismatch between the pictures and the mathematical concept they are supposed to be representing. For example, a problem like "9 - 6 = ?" shows 9 red apples under the number nine and then 6 green apples under the number six. I guess if you think of this as a comparison problem (how much more or less?), it works, but the kids Im working with at this level are confused by these visuals that are there to supposedly help. I would rather see the correct number of apples "x-ed" out, or falling into a basket, or somehow being "taken away." As a teacher, I know the minus sign just doesnt mean "take away" but the developers need to think more like kids and find visuals that support, not confuse.

seatutor about Math Magic, v4.3