What good advice, it is 2 day. It's too bad I can't really find much time or possibility for it with my public schooled child. She is extremely interested in what I guess is number theory. She is fascinated by things like primes and finding huge primes. Anything with a pattern involving pure numbers is like catnip for her. Interestingly, she also loved percentages, for some reason I can't place. Otherwise, she is not much into school math on an everyday basis. I am hoping that the leap into more exciting concepts will turn on some lights for her. She will have to take a test to determine her middle school math placement soon and I certainly hope she does well, or she'll be wasting her time. But she has a tendency to learn things perfectly and forget them if they are not used.