Final answer:
The best questioning technique for a class discussion is the use of thought provoking questions, which are open-ended and encourage deep engagement and a variety of responses.
Step-by-step explanation:
During a class discussion, the ideal questioning technique to be used is thought provoking questions. These questions are open-ended and encourage students to think critically and engage deeply with the subject matter. They avoid simple yes-or-no responses and require students to explore multiple facets of a topic, allowing for a more robust discussion. For example, instead of asking 'Did you understand the topic presented in the chapter?', a more thought provoking question would be 'What implications does the topic presented in the chapter have for our understanding of XYZ?', which encourages a variety of responses reflecting the students' comprehension and interpretation.