Proponents of open educational resources claim that significant cost savings are possible when open textbooks displace traditional textbooks in the classroom. Over a period of two years, we worked with 20 middle and high school science teachers (collectively teaching approximately 3,900 students) who adopted open textbooks to understand the…

The authors studied a course in which an instructor allowed individuals at a distance to participate. Although these students were not formally enrolled in the university where the class took place, the instructor gave them full access to all course materials and encouraged them to complete course assignments. The authors examined the time and…