Plexlearning: A Technology-Rich and systemic solution to Bloom's two Sigma problem

Plexlearning is one Cyberlearning response to Benjamin Bloom's long standing "Two Sigma Education Problem," since 1984. The problem is that Bloom's research confirms that an education system based on Mastery Learning and Expert one-on-one tutoring is significantly more effective than prevailing aggregate-based education delivery system. However, Bloom, this findings have been summarily dismissed as too expensive to be practical. This paper reviews a Technology-Rich systemic education framework called Plexlearning as a cost-effective practical solution to Bloom's Two Sigma Education Problem.