Its promise is oversold. I like it for what it is. But it is less transformative than appears at first glance. I like that teachers can customize lessons. Yet, it is labor intensive and takes a lot more work than traditional instructional methods. I do like that students can rewatch the lecture or video. I also like that students can see and practice the problem set again and again. Blended learning still posits the teacher as expert and leaves little room for problem and project based learning.
Though its promise is oversold, it still should absolutely be in the "toolbox" of a tech savvy teacher. Blended learning has a purpose and is effective by its own terms. Take a look at some of the blended learning ideas I shared with faculty members today. Not on the padlet presentation is the chrome extension edPuzzle. It is a must get for YouTube.