Facilitative Principles and Strategies of 3E Using Information Technology: UDL GuidelinesEducation should help turn novice learners into expert learners-individuals who know how to learn,who want to learn,and who,in their own highly individual ways,are well prepared for a lifetime of learning.Based on knowledge of brain-recognition network,strategic network and affective network in addition to the essence of e-media,there are three principles of UDL:(1) multiple means of representation,(2) multiple means of expression,and(3) multiple meanings of engagement.