We’re so glad that you’re working to expand the wide world of OER Trigonometry materials. As you know, trigonometry is a very rewarding subject to teach, as it can be approached so many ways. This variety means that though many OER materials already exist for trigonometry, there’s no one-size-fits-all solution in place. Even if you find a template course you admire, you’re likely to need to do at least some customization to fit your school, your program, and your students.

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Lumen Courses

Lumen offers several template courses that can serve as starting points for your own development. You can mix, match, and adapt anything from the courses below quite easily.

These math courses are supported by Lumen Learning’s Online Homework Manager (OHM), an online OER homework system that provides algorithmically-generated problems and immediate feedback to help students practice and master math concepts.

When you click the link for full OHM courses, please use guest as the username, no password is required.




Lippman Rasmussen – editable Full OHM Course Trigonometry instructs students in trigonometric functions, their inverses, properties, graphs and applications. Course content includes trigonometric equations and identities, the laws of sines and cosines, polar coordinates and graphs, parametric equations and elementary vector operations. CC-BY
Lumen/OpenStax – editable in-text videos Welcome to Precalculus II, a derivative work of Jay Abramson’s Preclaculus available from OpenStax. This text includes topics in trigonometry, vectors, systems of linear equations, conic sections, sequences and series and a light introduction to limits and derivatives. CC-BY

If you’d like to utilize any of the above resources in your own classroom, you’re welcome to

  • link directly to them in your learning management system (LMS)
  • copy and paste these materials into any format you’d like (a page in your LMS or a Word document, etc.). Include the copyright information and attribute the source as needed
  • print out materials and distribute them in your classroom. Include the copyright information and attribute the source as needed
  • talk with SUNY OER Services about integrating them into your LMS
  • talk with SUNY OER Services about collecting them in a bound, printed version to provide through your campus bookstore
The timeline for these last two options can vary, and will be discussed as part of your consultation with SUNY OER Services. Get started with consultation services here.