<p>My son, who received an LOA dated September 30, took six AP/IB courses during each of his two semesters during his senior year. Whether that is typical or not, I cannot say.</p>
<p>"Aren’t AP courses graded on a number scale (1-5)?</p>
<p>Not at my son’s high school. There traditional letter grades are given for AP courses; the AP exams, if the student decides to take them, are graded 1-5.</p>