Here in about a week and a half I will begin teaching 3 lab courses. I am very nervous! If you have been a lab instructor for a mechanics lab, about how much time did you spend lecturing the material? Were you nervous at first? I know I can go through the material myself without an issue, but teaching it to someone else obviously requires some formality and clear direction... did you spend a lot of time prepping the lecture portion? Any tips will most likely calm me down I'm sure. Thank you for all serious replies.