Educators and learners interested in free digital textbooks, either to supplement or to replace traditional textbooks, may want to check out OpenStax. This nonprofit initiative at Rice University "publish[es] high-quality, peer-reviewed, openly licensed college textbooks that are absolutely free online and low cost in print." Visitors to OpenStax will find dozens of downloadable, up-to-date textbooks written by experts in their respective fields, with particular strength in math and science. Other subject areas with OpenStax textbooks currently include social sciences, business, US history, and several for high school AP courses in science and economics. At the time of this write-up, the textbooks here are generally for introductory-level courses. Instructors can access accompanying teaching resources such as test banks and PowerPoint slides by creating a free account using their school email, which must be verified to prevent student access. Educators curious to learn more about expanding the use of open education resources (OER) at their institution may also want to visit the OpenStax blog, where they will find numerous articles written by educators and administrators sharing their experiences with OER and the lessons they have learned. In addition to their free textbooks, OpenStax also offers some low-cost learning technologies designed to accompany certain textbooks.
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