Excellent, excellent book. I keep it on hand and refer to it all the time. I highly recommend it. Parents who are interested in helping their children understand math could read the initial chapters about the foundations of teaching math and then refer to section 2 when teaching specific concepts. If you home school and do not use this book you should probably be incarcerated, especially if you are not confident of your own math abilities. Parents who understand math could benefit from this book too, especially if you are frustrated that you are not transferring your knowledge successfully. I love this book so much I am probably going to buy the new edition and read it for a third or fourth time.