One of the most valuable resources is from the Khan Academy.
For your convenience, I used their playlists from YouTube and are
found in the right.
Some of the topics are what I plan to do but since Salmon Khan did them, this will save me time to develop other courses. When I have time, I plan to do some of these topics as well.
I know you will find them useful and this is what I envision on the future of education about ten years ago!
Playlists from Khan AcademyHome
Please contact me if you are interested in developing multimedia content for affordable education.