I’m a big proponent of active learning, where the instructor has the students do some activity during the class as part of the learning. This article:
Written for Magna Publications’ Teaching in Higher Education website puts the spotlight on how active learning can go amiss.
In using activities during your lesson, it’s important to remember what the learning outcome is. Are you doing an activity for the sake of killing time? That shouldn’t be the reason, if you are using an activity specifically for a learning objective, that expectation should be clear to you in designing and selecting the activity.
I’ve often found it useful after an activity to share with the class specifically what the purpose was. If you are struggling to find two or three sentences to say what the objective was, the learning outcome may be missing.
With our full time classes, 6 hours can be a long, long time to sit and just listen, so I always encourage the use of activities. Just be sure that they have a purpose that ties the activity the day’s learning outcomes.