What RU Thinking?

This guest post comes from a CK-12 Champion. The original post comes from blog: What RU Thinking?

The CK-12 Foundation is the creator of Flexbooks which are free online textbooks. In the past few years the foundation has grown to include an abundance of free education resources that are standards aligned and customizable to your class.

For the rest of Barry’s blog, visit the site listed above. Thanks Barry!