CD is very good. I find it very reinforcing on what I’ve taught my son. You can’t expect for the computer to be your childs teacher but you can expect this to reinforce what you teach your kids. I love the vending machine where my son actually uses the skills I have taught him to get the correct answer, I enjoy watching him do fractions when they give them a recipe and they must put 1/3 cup of sugar with 1/2 teaspoon of nutmeg and so forth, hey, Now i could let him prepare my measurements in the kitchen, I also enjoy the books they read and then answer questions (only thing I wish they would ask them atleast six) but hey. I find it to be a pretty good addition to our 1st grade cd’s