I'm teaching English speaking classes to some people in my spare time to make some extra money. I can get by week by week coming up with something to do, but I don't really have a plan. I've never had any formal training on teaching English. Since I am studying at the moment, I have neither the time nor the financial resources to take a TEFL class or something similar. I would appreciate it if anybody could give me some pointers on how to set up a lesson plan and what kind of materials I could use.