How I Use It
I would use this product for students to review concepts they should have learned in their math or science class. It works great as a review tool because it tells the student whether they are right or wrong and they have multiple tries at getting the answer. There are also notes for each topic on how to solve a general problem, which is a great refresher for students.
The obvious way it could serve students better is to provide the entire worked out solution free of charge, or at lease a couple steps of each solution. However, the free notes offset this by still providing the students with guidance even if they are going through questions on their own.