Teaching What You Know
You don't need to have a teaching degree to teach what you know. While there are definitely restrictions which you have to be aware of, and limited venues in which you can work, there are numerous opportunities for lawyers to share what they know in a conventional or contemporary classroom setting.
Look for adjunct professor opportunities at your local community college or follow the footsteps of the Khan Academy at set up a website online where you offer free lessons that can benefit your market.