The Upper School math program offers courses in algebra, geometry, precalculus, calculus, and statistics. Courses are offered at differing levels of rigor. The program emphasizes writing mathematics properly and focuses on depth rather than breadth of understanding of mathematical principles. Students are challenged to defend their work, to work carefully and deliberately, and to justify their reasoning. An ability to discuss mathematics in a logical and coherent way is a necessary skill that students develop in every math course. The department believes that math study should be enlightening and enjoyable and that the process of working through a problem is in itself a worthwhile and valuable learning experience.