It depends how you use it, I think. Math in school is about learning and solving problems. But, many textbooks don't have answers. So how could you learn, if yo

It depends how you use it, I think. Math in school is about learning and solving problems. But, many textbooks don't have answers. So how could you learn, if you don't know if you have success solving problems? I think this is great, but it will get abused.