During a 100 minute maths lesson, a good teacher should be able to sense at a certain point, when the students concentration is wavering. Even adults have trouble concentrating on the one task for this long!
At this point, the teacher needs to intervene and change something. In many cases this may be a new activity. In some cases though, the students just need a quick break before they are ready to refocus. I like David Cox’s “What’s the Point?” activity.
What strategies do you use to keep students on task?