I am a veterinary medicine student, in my second year, and I used to teach 2 students age 11 and 14, English biology and chemistry, my teaching method is to make the student work their heads around the subject my explaining the chapter to them, then if they have anything their are confused about they'll ask me about it, and then it's either I re-explain it to them then teach them by asking questions and letting them figure it out, because there's a difference between succeeding from studying and from understanding