Hi Peggy Morganite,
Khan Academy has a large section of resources on how to set Khan Academy at your school with videos etc. Also you can ask questions in the community and get support from others I hope this link may be of help to you.
https://www.khanacademy.org/resources

Also to note if you have any more questions I will be happy to answer them.

Proud to be a Khan Academer
Katrina