slammie- I really detest when schools say that we should slow down acceleration so that teachers have something to teach. It sounds like convenience for the school and not in the interest of the student.

I bought the Singapore math word problems. DS is working on the fourth grade now- some are quite challenging, some less so. The challenging problems are worthwhile- DS kind of melts down on the hard ones, which tells me that it's pushing his analytical skills. (he's perfectionistic and throws a fit if he can't instantly "solve" a problem, preferably in his head).

Anyway, I didn't buy text books because DS knows (is on his way to knowing) most elementary school level calculation. I want him to be able to use it in applied word problems.