A few pearls of wisdom that I have learned are to plan early, be on time, and inform your students of your expectations and the school's expectations. Have your notepad handy to keep track of your daily plans with your checklist. Be sure you are familiar with the information you are teaching and where the students can find the proper resources. Be sure that if supplemental material is used, it's approved by the institution. Speak with your students about setting goals during your first meeting and gain an understanding of what they expect from you as an instructor. Enjoy your first class and don't be afraid to ask questions.