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According to
, you are a teacher and a good example. The important teacher is the cradle of teachers, and the important teacher also has many outstanding teachers. They use their knowledge to nurture students of the important teachers, and they witness the changes of the sun and the moon and the reincarnation of the four seasons in the classroom. The steps in front of the podium have been smoothed and shiny by their feet, illuminating the students' long journey. The various colors of chalk gray accumulated under the blackboard have become hills, as if the knowledge gained in the minds of students.
In order to better show the excellent style of teachers and further deepen the connotation of "famous teachers" in "famous students, famous teachers, and fame", the WeChat official account of Chongqing Normal University will launch an exclusive interview report series of outstanding teachers.
Today, let’s take a look at the “mathematics” world of young professor Liu Lihan.
If you want to use one word to describe "math"
What is the first word you think of?
For Liu Lihan, a young teacher in Chongqing,
His answer is "responsibility" and "love"
personally guides the scientific research class,
serves as the head coach of the digital model of the teacher
. His book has his own "mathematics world"
Liu Lihan
In the hot July "stove" in Chongqing, he abandoned the beautiful "holiday" of teachers and accompanied several college students to prepare for the mathematical modeling national competition; in the boring mathematics classroom, he explained the inner connections of functions in detail and led students to explore the mysteries of mathematics together.
His name is Liu Lihan, an excellent teacher at Chongqing Normal University who "dives into" the mathematics paradise. In his seven years of teaching, he spent most of his time cultivating students' mathematical thinking. He often worked overtime and squeezed time to lead students to the National Award, becoming the busiest head coach of mathematics modeling at Chongqing Normal University.
Liu Lihan led the students to participate in the competition to take a photo
Mathematical Modeling "Masters compete"
"Sorry, I'm still having a meeting, it's too late. Let's make an appointment for an interview again." At 10 o'clock in the evening, Liu Lihan sent a message to the reporter, and at this time he had a lively discussion with other judges at the judging meeting of the National College Student Mathematical Modeling Competition Chongqing competition.
Liu Lihan, who has been teaching in the heavy teacher for 7 years, has spent most of his time encouraging and cultivating students to participate in various competitions, and "busy" has become the norm in his life. Since 2019, Liu Lihan has served as the head coach of the Mathematical Modeling Competition of the Heavy Teachers, coordinating the entire process of the competition.
Liu Lihan has many "excellent" reasons why he can become the head coach. As a "veteran" in the mathematical modeling coach team, he has a complete and systematic understanding of the entire competition; as the team coach, he is very "focused" on students' guidance, often "giving small lessons" to students, and often takes the initiative to find students to analyze the gains and losses of training; as the coach of "several" teams, he has never been "biased" and has "teached every effort" to each coach; outstanding professional ability and excellent performance. Since leading the team, the winning rate of all teams led by Liu Lihan has reached 80%, and he has cultivated multiple national award teams...
"I feel honored to be the head coach, but I also realize that my responsibility is heavier." When welcoming a new role, Liu Lihan needs to put in more energy. As the head coach, Liu Lihan had to "help twelve points" throughout the whole process, organizing registration, selecting students, training young coaches, assigning coaches, and post-training... The overall work is simple to say, but it is actually very cumbersome, but Liu Lihan always arranged it in an orderly manner to do a good job in the early work for students to participate in the competition smoothly.
In addition, Liu Lihan has always insisted on being on the front line of the training competition. This year, he led 4 teams to participate as a coach. "The results of the competition have not yet come out, but I am looking forward to the good news. I also believe that they can achieve good results."
National Mathematics Modeling Competition is one of the first 19 competitions to be included in the "College Discipline Competition Ranking". In 2020, the teams participated in the competition reached 45,680 teams and more than 130,000 students signed up for the competition. It has high recognition in the industry and many students participated. According to Liu Lihan, more than 1,500 teams in Chongqing alone signed up for the competition.The "popularity" of the
competition brings higher requirements for the participating teams. In order to better help students, Liu Lihan and other coaches "give" the originally relaxed and leisurely summer vacation to provide students with concentrated training. In the first half of the month, Liu Lihan "grabbed" all the students from basic mathematics to computer programming, and then to the writing of the paper. In the later stage, every time the topic was tested, Liu Lihan would discuss the mistakes and progress with the students for the first half of the day, and often talked about the late night.
"The students also work hard for participating in the competition." Considering that the students may feel stressed and confused, the students' "Brother Han" mentioned by the students "opened" to students at any time, "I told them that I don't panic when encountering problems, just come to me!"
Liu Lihan (fourth from the right in the back row) led the students to win the award photos
"Good master" teaching and research
In addition to the head coach of mathematical modeling, "Brother Han" is another identity as a professor at Chongqing Normal University. No matter how busy he is in teaching, he dares not "slack off" at all.
Liu Lihan is not only responsible for the core courses of mathematics majors such as "Mathematical Analysis I", "Mathematical Analysis II", "Mathematical Analysis III", and " Complex Function ", but also undertakes the full English teaching of the international class "Mathematical Analysis" in the statistics major.
Compared with the study of ordinary professional courses, students in international classes must not only deal with the "difficulty" of mathematics, but also master fluent English, which is "more difficult" for most students. In order to better help students understand the course content, Liu Lihan will repeatedly ponder each knowledge point, trying to use the simplest and easy-to-understand expression to reduce students' course pressure and promote the absorption and mastery of course content. "Whether it is simple or difficult knowledge points, as a qualified teacher, I have to repeatedly 'draft' to help my students understand better."
Compared to "cramming" teaching, Liu Lihan said that he prefers to inspire students to think about problems by himself. "Mathematics itself may be boring, but in fact, you will find the fun in it if you look at it carefully." In his class, profound problems are often explained by examples of daily life, which greatly enhances students' interest in learning.
In addition to attending classes, Liu Lihan is also a "good guy" in scientific research. In his seven years as a senior teacher, he presided over two National Natural Science Foundations, eight provincial and ministerial scientific research projects and teaching and research reform projects, and published nearly 20 scientific research papers such as SCI.
The student stepped into the arena, he was the anxious coach; the student walked into the classroom, he was a good teacher to solve problems. 33-year-old Liu Lihan is young and energetic, as if he is always full of positive energy. He exudes his love for "mathematics" on the land of Chongqing Normal University, and injects this enthusiasm into his educational career, becoming "the most popular teacher among graduates", and also becoming a "beacon" in the hearts of students.
He exudes his love for "mathematics" in the heavy teacher, and injects this enthusiasm into his educational career;
He is one of the "most loved teachers by graduates".
In his heart, every child is a star,
His education should focus on brushing the dust and showing its light,
sending every child to their own track.
Teacher Liu Lihan’s educational path continues...
Disclaimer: The above content is reprinted from Chongqing Normal University, and the content posted does not represent the position of this platform. National Education Information Platform Contact Number: 010-65367702, Email: [email protected], Address: People's Daily, No. 2 Jintai West Road, Chaoyang District, Beijing,
