This prezi is what I have used to help countless instructors on how to add aerobics into your school. Tons of free ideas and tips. Websites and links are in this info filled prezi.
Download the attached word file for the link to the prezi file (it is too large for this site to upload).
Youtube videos are embedded....be sure you don't have a filter in place (like your school server that may block youtube)
Enjoy!