The content includes videos, figures and texts. It is good that figures have some "Long description" to elaborate the meaning, but it would be better to show it in the page instead of jumping to another page currently.
The interactivities mainly come from some short activities, which are contains some open-ended questions and further readings, and some surverys in multiple choice, but as seen from survery in Week 1, the use of radio buttos and check boxes are a bit confusing in the web froms.
The goals are well-articulated and supporting content is well presented.
Multiple modes of delivery are supported beyond video lectures and web pages (PDF, MP3, Kindle, EPub, etc.).