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, instructor graded worksheets with feedback, and tests.

Work through the entire course or only do the portions you need. Grading and feedback of worksheets and tests is typically done the next day, however please allow up to three business days.

The course is $60 per month and you may cancel any time.