Mathematics
Our online Mathematics courses—spanning elementary through college-level curricula—cover a wide range of topics, from algebra and geometry to chess, cryptology, and AP® Calculus and are guided by expert instructors. You’ll join group sessions with classmates to ensure you stay on track with challenging course content. Whether you’re looking for pure math fun and enrichment, to move up the math ladder and advance your honors and AP® (and beyond) academic standing, or to train for mathematics competitions, there’s a CTY course that’s right for you.
New math enrichment courses available
Explore our new math enrichment courses, including Excursions in Pre-algebra and Introduction to Logic and Proofs.
Join the exciting world of competitive math
Participate in the High School Math Club or enroll in 6 IP courses: Middle School Competitive Math I, Middle School Competitive Math II, Middle School Competitive Math III, Competitive Mathematics Prep, Competitive Mathematics I, Competitive Mathematics II.
Meet our Instructors
CTY's Online instructors hail from cities and universities around the world, but they all have one thing in common: a dedication to helping our students engage and connect with advanced concepts.
I love that through CTY, I get the chance to work with gifted students from all over the world. I consider it an honor to be part of their journey!
Amanda Broton
Mathematics Instructor
I love helping students understand difficult topics and make connections between them. Understanding Calculus is what makes advanced engineering applications possible, so it is extremely relevant to today's world and to the inventions of tomorrow.
Donna Miller
Mathematics Instructor
I am so excited when students are able to persevere and decode a very challenging cipher in the course! I love that Cryptology teaches patience and dedication, and that mathematics is so much more than just the study of numbers and equations.
Jillian Green
Mathematics Instructor