My eldest, now 10yo, is a competitive kid who likes standardized tests (like me at the same age). His math score will likely approach the upper 700s without further direct preparation, so now the foci are his verbal and writing scores, which were in the 400s as a 4th-grader. They will rise too as he matures, but I am having him go through a vocabulary series by Shostak. I've told him that when he completes the series he gets to take the SAT again. So we will likely have him take the SAT every two years to measure progress, although he may not test through a talent search.