Karen Fasimpaur has a new post concluding her series on the cost savings of open educational resources. From the post:
Hundreds of millions of dollars are going into costly interventions to remedy the achievement crises in schools today. Beyond that, it is impossible to calculate the financial burden of high school drop-out rates. If instruction were more effective and engaging, a lot of this expenditure could be avoided.
Part 2 and Part 1 are also available.