The Boy Scout motto is "Be Prepared." Do you know what the teachers motto should be? (No, not hide here comes those little bothers.) It also should be - "Be Prepared."
An unprepared teacher produces unprepared students. Ben Franklin is quoted as saying, "By failing to prepare, you are preparing to fail." And, that is so true.
Begin by preparing yourself. Get your heart and mind right. Next, prepare the presentation. Spend quality time preparing what you are going to teach. Don't just assume - well I know more than they do, so I can just wing it. Winging it is for the birds. (And, might acquire you some bird calls in the process.) You expect your students to have completed their homework before coming to class - well so should you.
James reminds us (3:1 NIV), "Not many of you should presume to be teachers, my brothers, because you know that we who teach will be judged more strictly." Your call to teach is from God - and He is the one grading your lessons.
For Kingdom Education,
From WTB Teaching With Style (c)1994