Open educational resources (OER) are disproportionately created and/or accessed by institutions of higher education as compared to K-12 even though teachers confront the challenge of outdated teaching materials or, worse, an increasing trend by school districts to discontinue textbook adoption altogether. In this paper, we describe a sustainable…

As the rising cost of college textbooks has outpaced both inflation and increases in tuition fees, this expense has created a significant barrier to student learning. Some instructors have adopted or created open educational resources, meaning materials which are freely and openly available. While the most obvious benefit of open course content…