I have not done either of those. I did watch a couple of his math videos on the site. It just so happens that we are teaching our son math this year. What great

I have not done either of those. I did watch a couple of his math videos on the site. It just so happens that we are teaching our son math this year. What great timing for this post. The videos were very good. I had my son watch the the "Division 1" video for a bit and he was tracking with it very well. Kudos to Khan Academy.