Personalization and the 2 Sigma Problem

By Stephen Downes - Stephen's Web. Personalization and the 2 Sigma Problem
Arthur VanderVeen, EdSurge, Aug 10, 2014
"Personalization." writes Arthur VanderVeen, "is defined as differentiating instruction and providing regular corrective feedback based on the needs of each student." But it's very expensive to do effectively for groups of students. More...