Hello Yiyang, thank you for the post. I think you did a good job describing what we’ve learned in the instructor’s post 1. I personally agree with you on how multimedia is a very interesting subject, it contains both psychology, education, and computer science, etc… As you said, the way of how people learn new things is slowly changing. We moved from the traditional way of teaching to projector teaching. I think it was big progress in the field of education.