Lack of Respect
You can boost your confidence by a detailed preparation for the class. This way you will find it easier to have a control over a situation. However, make sure your lessons are natural and you are able to improvise to some extent. Students can always have some tricky questions for you and you should not panic just because you didn’t expect to be asked such questions.
- What if I don’t know the answer to the tricky questions?
Do not worry about admitting it. You can always say that it would be better if you planned a proper lesson on it. Your students will not think any less of you if you admit that you don’t want to confuse them and thus you’d prefer to give them a precise and elaborate answer in one of your next lessons.