Openstax: K-12 Free Digital Textbooks
Openstax K-12 is a new development by Openstax College. Openstax K-12, funded by a grant from the Laura and John Arnold Foundation, is now developing free, digital textbooks designed to deliver personalized lessons to high school students. For more information and to sign up for their 2015 pilot program, go to www.openstax.org . Note: Go to Openstax CNX at www.cnx.org to view,find, and print open source K-12 educational materials/open textbooks (PDF format) that are currently available at Openstax.