We’ve all had it happen-the moment when a student asks you something that you don’t know. If you’re lucky, it’s one-on-one or during break time. If not, it happens in front of the class from a loud, insistent student. You begin to sweat. Your heart pounds. You manage a nervous smile while trying to reach into your brain to find the answer, hoping it’s in there hidden among the lyrics of annoying TV jingles and last week’s ESL lesson plan. You sigh inside and do your best