Will, you take your SAT scores starting in the later Fall. I'm not sure you know what you're talking about. Colleges have a deadline for freshman applicants. It's sure not towards the end of the year. Maybe for transfer students but not freshman. So therefore, his classes would indeed be preparing someone for the SAT. What do you think is on them? 75% of the high school classes are preparing you for college, which again leads to the SAT.
Edit: Sure, you can take SAT's year round, but this is if you aren't a senior in high school.