Which of the following is important when an instructor is leading a group discussion?

By the first break in a mandatory course, the students' non-verbal communication demonstrates a lack of connection with the subject matter. The instructor can then:

A trainer becomes aware that the students appear to be laughing quietly during the presentation of serious technical material. Which of the following actions should the trainer take?

An instructor is teaching a virtual class and notices that learner interaction has begun to taper off. A break was recently taken so fatigue does not seem to be the issue, but rattier a lack of understanding. Which of the following should the instructor implement to help identify where learners are getting confused"?

A learner has repeatedly taken different computer components and assembled them into a working computer, each time in front of the instructor. However, the student cannot pass the written examination on the subject. Which of the following would be the BEST action by the instructor?