I punished Arthur in his class this afternoon. He didn't listen to his teacher carefully, and did badly. I punished him to sit alone for several minutes. He promised to follow his teacher in the class. The teacher considered that maybe I was too strict to him, but I don't think so. Arthur is old enough that He should know He must be carefully in his clasd and follow his teacher, do everthing exactly. I must help him build a good habit.