Samuel, Great! I think students get distracted for a variety of reasons. Sometimes, just a change of tone of voice, circulating around the room, or standing next to a student who seems distracted (or disinterested) is all it takes. Changing activities is good when it seems the majority of the class has become disengaged. As the course facilitator, I have to be sensitive to the degree students are paying attention. Frequent "checking for understanding" by asking questions of student randomly helps keep them alert, as no one knows for sure who next is going to be called on. Also, this gives me feedback how complete students are digesting my delivered message. Barry Westling