This is a one-semester, High School Trigonometry course offered in either the fall or spring semester.  Structured on the free OpenStax textbook Algebra and Trigonometry, each lesson includes an active learning activity, a walkthrough video of the activity, a traditional lecture video, online homework assignments, and tests.

Trigonometry has no class on Fridays and covers one chapter of PreCalculus.

The course is charged per semester and is available in standard, plus, and premium options.  For a summary of what is included which each option, please see the chart below.