I currently teach business. But my background is IT so I'm always looking for cool productivity tools. This is one for sure !!!! I map an entire chapter. At a glance I can see where I am in my course and in my lecture. Now I've started expanding on it - add an icon to indicate nodes (topics) I covered vs not covered ... another icon to point to a 'class activity', etc. I sometimes print the map for students as an overview. Awesome product. Great job.
How do you use the icon of covered nodes and not covered ones? Do you move a child node to another parent when covered?