My math teacher, Miss Ran, left a deep impression on me. It was the first day of my fourth grade, and a strange face caught my eye: a pair of big eyes, thick black hair, and her fifties. My first impression was how kind and kind she was. When she said to us, "Hello classmates, my name is Ran, please call me Teacher Ran", I knew she must be a good teacher. Because her insight into students' thoughts deeply touched me and made me study harder and harder. Teacher Ran is very gentle. When you give us a lecture, your voice is very loud and everywhere. How well you speak! At that time, students were afraid to ask if they didn't understand, but Mr. Ran said to everyone, "Ask if students don't understand. Teacher Ran likes students who love to ask questions best. Hearing this, the students all rushed to the office. I remember at that time, the office was crowded with people. At that time, I also liked Mr. Ran and ran to the office every day until now. Two and a half years later, I became a math class representative, collecting homework, taking homework, managing homework and correcting homework for Mr. Ran every day ... very busy, but I am very happy, because ... in the fifth grade, my study declined a little, and Mr. Ran often talked to me and asked me why, but I don't know why. I dare not look into her eyes. I am ashamed. However, Mr. Ran gave me encouragement without any criticism. I cried, I was sad and felt sorry for her. Because Mr. Ran is very kind to me and cares about me. In the second half, I returned to my best condition. Because I turn teacher Ran's encouragement into motivation and work hard! Teacher Ran's hair on her temples is a little white, because she took great pains for us. My heart is sour, and I have an unspeakable taste. I love Teacher Ran and her meticulous and selfless dedication! Teacher Ran, my impression of you will never change, because she is engraved in my heart!