A teacher is an agent of change who can positively or negatively influence students through their thoughts, words, and actions. As an agent of change, a teacher should have a positive mindset, care about students' welfare, be patient, and be passionate in their work. Specifically, a teacher's thoughts should consider students' feelings and how to help them improve. Their words should inspire students and give constructive criticism sensitively. Their actions should lead by example through good behavior, respect, and not talking negatively about others.