It’s been a dual track. As states across the country look for ways to provide more high-quality resources to classroom teachers, universities have been experimenting with materials that reduce the crushing cost of college textbooks. In Connecticut, one state commission is looking to unite the two and share open educational resources at all levels, from local school districts through state universities and colleges.
https://www.the74million.org/article/connecticut-one-of-20-states-leading-the-charge-on-creating-open-education-resources-that-stretch-from-k-12-to-college/