I love liberty classroom, but one thing that has been frustrating is switching between lectures.
First,a two-tiered drop down would do wonders, especially when listening on mobile devices.
Select your course and the lecture and hit GO.
Even simple “Previous Lecture” and “Next lecture” buttons would be a welcome improvement in usability.
I second Aristocra’s recommendations and would like to add; It would be helpful if the individual lesson links would change color after use so I can better keep track of which lessons I have already visited.