Worth Every Penny! Practice Makes Perfect!These Kumon books are worth every penny. The learning by repetition / by using drills is not a inferior form of learning; it works! I have seen it work amazingly well for inattentive children and for children who were suffering from learned helplessness: children who learned to think they would never succeed. By allowing lots of opportunities to practice and succeed, with the Kumon books, I have seen several children completely change their attitude on previously “difficult” subjects. It is important to remember to start, most of the times, with books 1 or 2 grades below a child’s grade level, to allow the child to succeed 80-90% of the time, and only move to another grade level when the current grade level is mastered. Worth buying another copy of the same book if more practice needed (not worth erasing everything: would look dirty). Amazing resource. I wish they would sell online the books pass grade 6, and not only until grade 6, as currently (Nov 2013) available.
