Unbelievable!!! As a doctor, and self professed edu snob, I take home-schooling to the next level and am very difficult to please educationally. My five year-old on Rock n Learn DVD's is light years ahead of his classmates in the mere 30 mins it takes to ride to and from school daily! He loves to watch them and sing along. I often sit down to teach him a "new" concept, only to find that we can skip ahead because he has mastered the fundamental concepts via his colletion of Rock n' Learn DVD's :-) I urge you to make the small investment, and watch your kids knowledge-base SOAR!