Football Math: Touchdown Activities and Projects for Grades 4-8

I bought this for my 9 year old son who is only in third grade. He gets good grades in math, but hates it. This product made learning math fun for him and he has spent alot of time even in the car doing problems in this book. It is a lot of fun for him. I plan to order him this year after year as they come out with new ones. Some of the problems of course are difficult for the little ones, so I would like to see them come out with one that is grade specific and not 4 - 8, but overall we were very pleased with the product and it did everythign we had hoped it would do to encourage our son to explore math.