I haven't done too much research yet but the website says its a 7 rider max group on the track at a time with an instructor. And hopefully they give you feedback and training all at the same time.
Looks like its 250 bucks. Pretty expensive but I think thats worth paying for a noob like me.
Heres the link.
http://www.jenningsgp.com/trackschool.htm
They have one coming up april 15th that I may try to attend.