A free online class "Concussion in Sports - What You Need To Know" is available from the NFHS.  It looks at different aspects of concussions such as what a concussion is, how to recognize a concussion, and the issues involved in returning athletes to the classroom and to sports.  Intended audience is athletes, parents, coaches and teachers.  Sign-up is required and you can expect to spend an hour going through the class.

Available at the NFHS Learning Center: www.nfhslearn.com/electiveDetail.aspx?courseID=15000