I really enjoyed when you talk about Dr.Ray’s video.  I totally agreed that the video is “lacked non-verbal representations”.  Another thing I like is the video you made. According to learning principles, the video did a good job with primacy because it  shows the processes step by step in clear and organized way.

I wonder if explain a bit more about how did you broke the Interactivity Principle would be more interesting for readers.

 

https://alisonneale.opened.ca/category/multimedia/edci337-feedback/