If he wants to be a scientist, why not get him a book like 101 experiments to do in a shed and the two of you do one of those every other night? And the two of you learn about the science behind it too! That way you can have fun together, do something that won't be covered in school for aaaaages so he won't be as bored in school doing things he has already covered and learn too.

I loved blowing things up in my friend's shed. His mum encouraged learning and although he did loads of "homework" in the holidays it was fun. My mum refused to let me light a bunsen burner after buying me a science kit. Not as fun.

I'd have loved to have my parents more interested in my education and doing homework with me! They were never that interested in science though. And I'm not, to be honest. I like being a magician. I know enough science to create fire from water and make bangs and sparks. I just need to get a handwriting segment on powerpoint so it looks as if I'm writing on the board magically as I speak, then tell the kids I think this school is better than hogwarts. I rock.