A New Method for Estimating OER Savings

"Earlier this year, SPARC launched a community-wide effort to track $1 billion in worldwide savings through the use of OER, responding to a challenge issued in 2013. At the 2018 Open Education Conference, we announced that the OER movement had successfully reached this important milestone. This is the first of a multi-post series explaining our calculations behind the $1 billion, and what comes next."