I am a substitute teacher embarking on a 6 week adventure teaching 7th grade social studies for a teacher on medical leave. One thing that I hadn't been able to master as a student teacher was when you call on a student and they say "I don't know." If they really don't know, I don't want to pressure them to answer. But sometimes they just say that because they are lazy, and I can't stand it! I tried participation notecards, but it just took too much time in and out of class. When I was in highschool, my most admired teacher was the teacher that called on you when you weren't paying attention, thus, you tried very hard to pay attention to avoid being called on. I think this was very effective and motivating to participate. I have not had this experience. I really want a student to answer quickly and be able to move on to the next question or point. Advice???