A trainer is suspecting that a specific learner is not grasping the material that was just covered. Which of the following question types would BEST determine this student's comprehension?

Which of the following is a non-verbal communication method an instructor should use?

After covering a topic, a trainer asks, "What did Columbus think of the new world?" Several learners indicate that they know the answer and the trainer calls upon one of them. This is an example of which of the following types of questions?

An advantage of using the closed question type over the open question type is that:

A trainer has just covered material where the learners have a reasonable and expected understanding. A learner then asks a question relevant to the material covered. Which of the following is the BEST action for the instructorto take?