EAL sociocultural theory with lots of background, then ideas for the class. How to move kids along in the ZPD. Considers feedback in relation to ZPD and importance of meta-language
P. Seitlinger, and T. Ley. Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems, page 1631--1640. New York, NY, USA, ACM, (2012)