Mr. Zhang is our math teacher. He works very hard. He makes everything easy and clear in class. But my classmates don’t like him, because he never smiles, or jokes with us. Some of my classmates stay away from him and even talk about him behind his back. Neither the teacher nor the students are happy. To Mr. Zhang I want to say: smile to us and we will love you even more. To the students I want to say: be nice to him. He is a good teacher after all.