AP Calculus I & II Weekly Recitation, Semester Long - 16 weeks, 1 day per week, $400. Calculus serves as a foundation for all studies in science, technology, engineering and mathematics (STEM). So get ahead early and stay ahead by meeting weekly as a group with a qualified instructor. Get answers to difficult or puzzling questions, close conceptual gaps, study for upcoming tests & quizzes, and prepare optimally for spring AP exams. Begins weekly on second Monday of semester, 6:00-7:30 pm.