Liu, male, an expert in primary school mathematics education, a special math teacher in Beijing, and director of the primary school mathematics teaching and research section of Xuanwu Branch of Beijing Institute of Education. He has been engaged in primary school mathematics teaching and teaching research for a long time, attached importance to the study of students' learning psychology, advocated "retreat for progress" and "teaching mathematics to produce mathematics", and gradually formed a classroom teaching style of "natural but not arbitrary, standardized but not rigid". He was rated as an advanced teacher in Beijing and Xuanwu District for five times, and participated in the "Liu Classroom Teaching Characteristics Seminar" organized by Xuanwu District Education Committee from 65438 to 0994.

In the past few years, Mr. Liu has held more than 100 public classes or academic lectures in Beijing and many provinces and cities across the country. Teachers generally reflect that his class is novel and unique and full of philosophy. Teacher Liu attaches great importance to the cultivation of young teachers, and many of his apprentices have grown into excellent teachers, teaching cadres or teaching researchers at the city and district levels. Among them, Mr. Liu participated in the 200 1 National Classroom Teaching Competition on behalf of Beijing and won the first prize.

Message: "Disciples don't have to be inferior to teachers". Disciples are always inferior to teachers, which is the teacher's sorrow; It is a teacher's greatest wish to be inferior to a disciple.