Trigonometry
Angles, the unit circle, and the identities that make trigonometry work.
This is a full trigonometry course built from the trigonometry chapters of Michael Sullivan's well-known textbook, Algebra and Trigonometry. It runs over two semesters of twelve weekly classes each -- one class every Saturday, a single two-to-three hour session -- and takes you from how an angle is measured all the way to identities, the laws that solve any triangle, polar coordinates and vectors. Each Saturday you watch that week's video together, a moderator answers your questions as you go, and you work real problems with Claude Code at your side to check every step.
Two semesters, 24 classes in all, one class a week -- a single two-to-three hour Saturday session. The syllabus is open to everyone; each class's lesson opens for subscribers. It is included in the one $13.99/month subscription.
Semester 1The Trigonometric Functions
You learn trigonometry from the ground up -- how angles are measured, the unit circle that defines sine and cosine, right-triangle trig, and the graphs of all six functions and their inverses.
See the 12 classes →Semester 2Analytic Trig, Applications, Polar and Vectors
You prove and use the trig identities, solve trig equations, apply trig to real triangles with the laws of sines and cosines, and finish with polar coordinates, complex numbers and vectors.
See the 12 classes →