Opportunities for engaging students in real class discussion do not hinge on such convergent or close-ended questions.
Good problem setting is the key to a good discussion.
In the classroom, this open-ended or divergent approach not only keeps students actively engaged but brings an element of interest even risk to the most turgid of subjects. Some coaxing is needed by the instructor to lead the student toward a discussion which engages the subject matter more fully. Here is where your subject matter knowledge and communication skills are tested publicly as the class waits to hear the direction of the conversation. This phrasing is likely to lead to a student narrative or story, however short. Don't underestimate the value of stories in your classroom discussions.