As the lesson comes to an end, even if the teacher doesn't say "be quiet" or "sit down," the children naturally return to their seats and quieten down.
授業の終わり近くになると、教師が一言も「静かにしなさい」「座りなさい！」と言わないにもかかわらず、自然と子どもたちは自分の席に戻り静かになる。