We will use at least two other OER texts as resources. They work to bolster some of the areas where there is less coverage here. I realize the entries below are not in full APA format; the full names of these adapters and creators deserve to be noted, too, though.
As you can see, there are various resources here and they represent the best of the few education texts currently available in OER. (In fact, this Principles of Education course text has been the holdout for a few years; all my other texts are OERs but this due to the dearth of good texts.) Remember the course learning objectives and how such an introduction is a modest venture, but also one that takes on dozens of topics spanning education, psychology, economics, law, history, and culture.
Alfie Kohn’s blog is a fascinating look at equity and the education system. He focuses on testing issues. From having used his book as a course text, I know you are in for lively reading! These outside resources can always be tied to active discussions in the course. The question to ask oneself is “To what extent is ______ that _______ is stating typical or representative?” Answering this lets us avoid the misleading vividness fallacy whereby something shiny distracts us!
http://www.alfiekohn.org/blog/
http://www.alfiekohn.org/standards-and-testing/practical-strategies-save-schools/
The National Center for Fair and Open Testing
The site provides a useful overview of contemporary issues teachers face.