<p>Make sure your son gets a book of SAT II sample tests and tries out the ones he plans to take.</p>
<p>In some instances, he may discover that he is not as prepared as he thought. The curricula of specific high schools are not always a perfect match for the material covered on the SAT subject tests. If this happens, he may want to choose a different test or study the missing topics on his own, using an SAT II review book or other materials.</p>
<p>The right time to take the Math IIC test is at the end of precalculus -- that is, in May or June of whatever year he takes the course. Then, if the student is disappointed with the score, there is time to study and take the test over. </p>
<p>My son did very well in the basic biology course at his high school and wondered whether it would be a good idea for him to take the SAT II at the end of the course. His guidance counselor said definitely no. He said that many, many students take the test after completing AP Biology in 11th grade and that kids who take it after completing only the basic course are at a huge disadvantage. Of course, this advice may not apply to other schools that might have more rigorous basic biology courses.</p>