Student learn by being engaged

Asking questions and encouraging questions are beneficial to learning for all. And if the answer is unknown, it is ok to say you don't know, and either have someone else do the research or conduct it yourself, and have the results discussed. As for questions that may be unrelated or may confuse others, best to take those up one-on-one with the studen.

Knowing your learner is important to determine how you will provide delivery of the topic that is being taught. This will make you teachings more effective and efficient. Giving the learners an easier way for them to learn, and reducing any frustrations or negative learning.