Hi Marlena, I like to compliment student work continuously throughout the lesson. Sometimes this is just affirmation and acknowledgement of responding correctly. Disruptive, distintered, or distracting student behavior does not require complimentary sentiments, rather intervention to get them refocued and engaged. It doesn't have to be negative. It does have to get their attention to get them back on track. When student feel their teacher cares about the students learning, they'll be responsive to direction from their teacher. Barry Westling