Hi, I've just completed my second week of teaching at an elementary school in Seoul and I am pretty satisfied with myself. However, today my co-teacher tells me that I have to teach other Korean teachers English twice a week. She is getting a book for them so by next Friday I should be fine. However, I have to teach them next Tuesday with no materials. Today was my first time teaching them and it was frustrating. I basically introduced myself and went over the differences between much/many/a lot because I notice that most Koreans get these words mixed up. I want something more interactive but I'm not sure how to be that way when my students are so much older than me. Any ideas for my class next Tuesday?