earle58, i can almost feel the maternal tug in my own chest when i read your posts, but, mom to mom, you gotta let that boy do his own thing.
the most important thing you can give him is the confidence to get out there and do something, anything. if you do this project for him, your message is, "i don't think you are smart enough to do this, so i'll do it for you." sometimes we can love our kids too much.
i have add also, and i spent a lot of time "in trouble" for the usual reasons. but getting so focused in on your boy's business--that's not add, that's iffy boundaries.
come to resent it.
here's your chance to coach and cheer and applaud him. don't fight his battles with his teacher either. it's clear this kid doesn't suffer from neglect: you are doing a much better job momming than you think. odds are terrific that he can get something respectable together, and by the 30th, too.
if you must help, let him tell you
(specfically) what to do, as in "mom, hold these two things while i glue them together." don't correct him, don't make suggestions. if you can't applaud, coach or encourage, just smile and nod.
also, google is a great resource, even for kids. check out this site
that i found on google (i just searched for "brain"--no quotes, of course). it is specific for kids k-8, and it is just too cool.
in fact, thank your son for me--i wouldn't have found that site if i hadn't read your post, which was there because he has a project! (and go read that magazine!