? President Li sent me a letter about the class. Every time I write back, President Li always says "thank you". The simple word, President Li has used it again and again. It is such a modest and sincere principal that I admire and move beyond words. Let me realize what I should do when dealing with people.
? President Li sent ppt, lesson plan and video, and opened the lesson plan for six pages. This is an efficient and good class after spending two or three hours reading the record of the first class, preparing lessons for the second time based on the mastery of the learning situation, deducing the best questions based on the learning purpose, and presupposing various possible situations. From the second lesson preparation, I saw President Li's sense of responsibility and feelings of being meticulous and striving for perfection. Isn't he explaining a seriousness and a specialty to our front-line teachers? (Although a Chinese teacher who hasn't taught for many years) Isn't this the craftsman spirit? Do things differently, pay attention to quality, and sometimes need a little stubbornness. Isn't that what I should learn as a front-line teacher?
? There is no class in the second period on Friday. Students are fully prepared before class, waiting for the mysterious big coffee to come to our class. At this moment, President Li came in through the back door with a notebook and pen. When he saw the smiling faces of the students, he should have guessed that President Li was coming to give a lecture. But after entering the door, President Li sat on the stool at the end of the lecture and pretended to attend the class. Individual students are like deflated balloons in an instant. After sitting for a while, President Li got up and went to the podium and asked the students, "Do you know who the mysterious guest is today?" "I don't know," the students replied in unison. Principal Li, are you naughty? The students' little hearts have been tossed. This is exactly what students like about President Li, giving them unexpected surprises from time to time.
? "Classmates, there are mysterious guests coming to class today. What does mystery mean? " With this question, this class officially began. President Li asked the students to touch the prepared RMB. What new discoveries can they make? The students' answers are all preset by President Li. President Li threw out the second question: "Students, what is the difference in the face value of RMB?" This question is more detailed, so students will pay attention to the difference between the above figures. Finally, it is concluded that their face values are all composed of the number 1.2.5.
When it was said that there was no 3 yuan, Dean Li naturally asked, "What denominations are there?" "There are no 4 yuan, 6 yuan, 7 yuan, 8 yuan and 9 yuan." After the students finished speaking, President Li asked, "Why is there no such figure as 3.4.6.7.8.9? Wouldn't it be nice to print them all out? How much do you need? " President Li asked everyone to take out the blackboard and let the students discuss the formula of only 1.2.5. After a heated discussion, the first group of representatives came to the stage to share and came to the conclusion that 1.2.5 can form any other number, which pushed this class to a climax.
President Li also told the students that 1-9 has important figures and unimportant figures. 1, 2,5 are important numbers, and other numbers are not important. Several important numbers can be combined with the least number of times to get unimportant numbers. President Li also showed the students the denominations of currencies in other countries and regions, and told them: "The denominations of currencies in the world are mainly 1, 2, 5, because the denomination distribution of currencies is to pursue the denominations that can be matched with each other with the least denomination, and the numbers 1, 2, 5 meet this requirement." Finally, I showed my classmates a life problem. Math diary: On Sunday, my mother was cooking and suddenly found that there was no soy sauce. My mother asked Xiaoming to buy soy sauce. A bottle of soy sauce in the supermarket 16 yuan, Xiao Ming gave it to 20 yuan, the cashier in the supermarket. But the cashier asked Xiao Ming if he could give 1 yuan. Xiao Ming wondered: Is the cashier confused? I have already given it to 20 yuan. Why do I need 1 yuan? Students, do you think the cashier is very confused? Why? The students successfully cracked the answer, and President Li summed up the numbers 1, 2, 5, which brought convenience to our lives. Let students really feel the practicality and interest of mathematics.
? This class is coming to an end. After summing up this lesson, President Li told everyone: There are many math problems in life, and you can learn them everywhere, and math is around you. President Li wants students to learn mathematics in life and use mathematics in life. Mathematics is inseparable from life.
? After class, the students stood up and ran to President Li, laughing, pulling and hugging. If you can't squeeze in front, you can't lose. I'll start from the back, and my back will do! Just about to walk out of the class gate, I was stopped by twos and threes. Talking about my mood and harvest ... is not only a lesson for my classmates, but also affects their lives, recalling something I was proud of when I was a child. Many students said: President Li taught us that the face value of RMB is composed of 1.2.5, because 1.2.5 can add up to any number. President Li has a lot of interaction in class. I like it very much. I feel very relaxed and interesting. I look forward to President Li coming to our class more often. Besides math, there are Chinese, English, art and drama classes. ...
President Li not only taught the students a lesson, but also taught our teacher a lesson. Teachers also have something to say after listening.
Teacher Cui Ruifang:
1. From the reality of students' life, the topic is particularly good. Rmb is a special commodity that can be seen and touched, and it must be carried out by concrete objects. Real money in class is particularly good; With the improvement of people's living standards, students' horizons are becoming wider and wider. During the holiday, my parents also saw different currencies of many countries and regions with their travel abroad. This lesson is very enlightening to carry out effective teaching activities according to the actual needs of students.
2. Group cooperative learning provides students with sufficient opportunities to participate in activities, such as learning tasks equal to 6, 7, 8 and 9. In fact, it is an exercise in reverse thinking. Through different forms of face value combination, students' proficiency in recognizing the face value of RMB is continuously improved, and the importance of 1, 2, and 5 face values is further penetrated.
3. Expand monetary culture and enrich students' cognition. Every country's legal tender design will have national cultural characteristics. Rmb is no exception, which not only enriches students' understanding of China's history and culture, but also strengthens their love for RMB and permeates patriotic education.
4. Thinking: With the improvement of the current economic level, these are far from meeting the needs of students. I am thinking that mathematics, like knowing clocks and watches, needs to be studied in stages. Why not increase our understanding of RMB (Ⅱ) in the middle and senior grades of primary schools? This class can talk about "the face value of RMB", and can also add the exchange rate conversion of currencies of various countries to broaden students' horizons. At the same time, it can also solve the problems in life and truly integrate real life into the classroom.
Miss Chen Jiaojiao: As a math teacher who has been teaching for more than ten years, I have a sense of urgency after listening. The focus of this class is outstanding; Children have a sense of accomplishment; Dig deep into the root of the problem, why? Diversified problem solving, divergent thinking, and multiple solutions to one problem pave the way for studying senior mathematics in the future.
Teacher Li Yu: ① The infiltration of mathematical thought.
By observing the face value of RMB, this lesson leads students to find that the face value of RMB is related to the array 1, 2,5, and explores that 1, 2,5 can be combined to get any face value we want. After leaving school, we asked, "Why don't you print all 3, 4, 6, 7, 8 and 9?" Students' answers are also varied, such as "high cost and trouble". And in this process, the mathematical thought of "optimization" was infiltrated.
② The emergence of classroom problems.
When President Li was guiding students to think about why the face value of RMB is related to the numbers 1, 2 and 5, some students raised the question "Because 1, 2 and 5 are divisible", which is actually a RMB exchange problem, equivalent to unit conversion. This kind of classroom generation is unexpected, but it is reasonable in terms of the problem itself, which shows that the child has come to a conclusion after thinking. It can be seen that children's thinking angles are diverse.
③ Class summary.
President Li summed up this lesson in one sentence: "As long as you put your heart into it, you can learn it everywhere, and there is mathematics everywhere in your life". Summarize the classroom with the most popular, familiar or appropriate language, which makes the math class not only a simple math class, but also sublimate some valuable non-knowledge content.
④ Mathematics in life.
This class is a math class in life. Students can observe the face value of RMB, find the characteristics of face value, and then explore the characteristics of face value Naturally, they can start with real life scenes and feel the mathematics in life, which also provides a supplementary course for our regular mathematics class.
Miss Zhang Shanshan: Although President Li is not a math teacher and has not given lectures for many years, I have learned a lot from President Li's two classes.
The feeling of preparing lessons.
The article "President Li's First Math Class" with more than 4,000 words was written in one go. I have a lot to say, because I saw it with my own eyes. The teaching plan and courseware have been revised several times, and the renminbi in the classroom insists on using real money, just to let students have a real feeling. The real RMB makes children more interested; The math class is too challenging for President Li, but he has been working hard. After reading "President Li's first math class", Mr. Zhu Lin said: I cried, so I must have been moved by President Li's spirit.
2 class feelings.
? This is a math class with a raise rate of 100%. It's like listening to grandpa tell a story. It's a math class, with cash 1 125.6 yuan ... The headmaster recognized more than 80% of the students in the class, especially Han's timely encouragement: Newton discovered gravity and Columbus discovered the new continent. Han is very happy and more confident. President Li's class is a symbol and a spirit, which I witnessed with my own eyes.
③ Comparison between two classes.
I remember Ben Lin You said: Dare to study with yourself! This kind of courage can be seen from President Li! Compared with the first class, the classroom atmosphere of the second class is different, and the arranged classroom links are also adjusted. This is President Li's challenge to his class. The two classes present different classroom forms. This is a quality that every math teacher should learn.
Director Zhao Jing: The investigation of pre-class study requires discussion and divergent thinking, mastering mathematical terms and forming mathematical habits; There is a great difference between indoctrination knowledge and exploratory knowledge; We should think from the students' point of view and find out what students like and what classes they like.