Great material for online. The idea of guest lectures is one idea i may have to include. 

Learning about the different ways to keep the students engaged while teaching an online course. 

Learned the different ways to teach a class and provide discussions. 

I learned how to help and keep the students engaged in the lesson from behind the computer and how to get to know your students from behind the screen. 

I have learned about all the different ways the instructors can make online learning interesting and more engaging for the students.