Another extreme teachers may veer into, in their desire to encourage discussion and thought, is simply to allow their students to drive the lesson's conversation. Admittedly, this extreme may also be the result of the teacher's lack of preparation. They don't know what to say, so they just ask their students to say what's on their mind.
Regardless, this point might sound contradictory to what has been suggested in this quarter's previous tips. If teaching is not about lecturing and we need to encourage discussion, doesn't that mean listening? Furthermore, isn't it true that the teacher often feels like they learn more from the lesson than are able to teach their students?
The problem comes in the extreme; the teacher should guide the discussion at the least. Ideally, the teacher should have good understanding of the biblical principles in question and be able to help students replace worldly concepts, faulty reasoning, or uninformed thinking with God's truth.