Site. Playground training.

Consider the option of buying the site, a site for organizing online trainings. (design matters).
The functions briefly: List of lessons. Access is closed. Open the first lesson. The student performs the task, writes a report form. The teacher got the answer that comes to your site the student writes a comment (loads video, audio,text, picture). The student receives a response.
Working in the administrative panel of the site should make a normal user.