20 Ancillary Materials
Ancillary Materials are things like test banks, quizzes, slides, and lesson plans. As with subject availability, the format and types of OER that have been developed over time have largely been targeted at high enrollment courses which could see substantial cost savings for students. There are many open textbooks available today, but fewer options for ancillary materials. You can find lecture slides, notes, and lesson plans online, but ancillary content such as homework software and test banks are harder to find.
However, there are some good places to search
| OER Commons | https://www.oercommons.org/ | A little bit of everything. Use the Advanced Search feature to refine your search to a specific format type |
| Merlot | https://www.merlot.org/merlot/ | MERLOT is an open educational resource project from the California State University system that started in 1997. |
| LibreText | https://libretexts.org/ | An online textbook platform that also includes many ancillary materials |
| OpenStax CNX | https://cnx.org/ | A place to find ancillary materials for OpenStax textbooks |
| Khan Academy | https://www.khanacademy.org/ | All subjects and grade levels |
