As is the case now, the main instructional feature comes in the form of videos. Students should be able to download these, view subtitles, and download the transcripts. When appropriate, inline quizzes can increase engagement and keep students on track in their learning. The best existing method that I’ve seen is Udacity’s, where the quiz widget buttons are overlaid on top of the video rather than in a pop-up window that covers the video screen. I say “when appropriate” because inline quizzes are only necessary if they guide the learning or peak the learner’s interest, keeping them engaged.
Finally, I will outline some additional features necessary for 21st-century learning.