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Highlight the promotion of second-grade mathematics
The observation meeting on the evaluation of the tenth primary school mathematics excellent course in Henan Province ended on the morning of April 2 1. Although I am very tired after class these days, I dare not stop because of the wonderful highlights of the lecturers. So I am used to sitting in front of the computer.

Highlight 1: Talk before class-wonderful

Pre-class conversation refers to an impromptu conversation designed by teachers a few minutes before class to communicate the feelings between teachers and students and enliven the classroom atmosphere. As we all know, the success of a class depends on whether students actively participate in it, so teachers attach great importance to pre-class conversation.

Liu Jiao, an Anyang teacher, teaches the fourth grade mathematics "the sum of the inner angles of triangles". In class, students need to use an important mathematical thought to transform their thinking when verifying that "the sum of the internal angles of a triangle is 180". So, before class, Teacher Liu had a conversation: Everyone has heard the story of Cao Chong's elephant barking. What is the beauty of elephants in Cao Chong? Yes, the beauty is that he replaced the weight of the elephant with the weight of the stone. Method of substitution is a transformation thought in mathematics, and I believe that transformation thought can help us. When the students used their own methods to verify that "the sum of the internal angles of the triangle is 180", Teacher Liu encouraged them in time: "You all use the idea of transformation, and you all have the idea of mathematicians. "

There are many wonderful pre-class dialogues like Teacher Liu. For example, Qi Yuan, a teacher from Zhengzhou, organized a little game of "Sticking Cong Cong's Nose" before class, thus telling the students that the teacher believed that everyone would bring this spirit of mutual assistance to class. Zhao Yanwei, a teacher in Jiaozuo City, surprised the students with his "mind reading" before class. While the students were meditating, Teacher Zhao said with a smile, "In fact, many things are just like magic, which is dazzling and inexplicable at first glance. As long as we observe carefully, we can discover the mystery. The teacher believes that you will find a lot of math knowledge through careful observation in this class. "

The wonderful dialogue before class, like the fragrance wafting from the bakery, makes people take a deep breath and take another breath unconsciously ... or like a good book, they want to read the second page and the third page when they open the first page. ...

Highlight 2: Practical design-ingenious

Practice is a purposeful and organized learning activity, which aims to make students better understand knowledge, consolidate what they have learned and form teaching methods with certain skills. Exercise design is interesting, hierarchical and scientific, which can mobilize students' enthusiasm for practice to the maximum extent, so that students can develop their thinking and achieve their ability unconsciously.

Teacher Feng of Xinxiang City designed two exercises in the second grade math "Comparison of Numbers within 1000": one was to grab the numbers. The students are divided into left and right groups. The teacher showed a number. If it is greater than 365, the students in the left group say "Yes" and the students in the right group say "Yes". The design of this topic is very interesting, which greatly arouses students' interest in learning. The students count enthusiastically and are lively and lovely, pushing the whole class to a climax. At this time, Mr. Feng designed another exercise for the writing contest. The rules of the game are: 1. The teacher will show three number plates in turn. Draw one at a time, and it's up to you to decide which number to write on. Be sure to think about it! 3. In the end, the whole class has the largest number of students. Students watch carefully, think carefully and write quietly ... If the practice of grabbing the number is the high waves when the sea is excited, then the competition of writing the number is the tranquility of the sea after the waves recede, which makes people immerse, intoxicated, enjoy and enjoy. ...

Highlight 3: Strong adaptability

Makarenko once pointed out that one of the important characteristics of educational skills is the ability to improvise. Classroom teaching is a bilateral activity between teachers and students, and there are often some unexpected situations. If the teacher doesn't solve it, it won't work If they can't solve it well, it will affect the teaching effect and learning effect of the whole class. Therefore, teachers need to have strong adaptability to emergencies in the classroom.

Gao Na, a teacher in Jiaozuo City, taught the sixth grade "Arrangement and Review of Cylinders and Cones". In class, after a classmate showed his excellent works, Mr. Gao said kindly, "Who will give an evaluation of this classmate's works?" No one in the class responded, and the classroom was silent. I saw Mr. Gao Made finish his visit and said unhurriedly, "Well, let me evaluate it first." For the sixth-grade students, it has reached the age of talking about the big and talking about the small, and it has already passed the age of good performance. Miss Gao didn't spend time here to seduce and guide them, but made a neat evaluation. When the second student showed his work, Gao Made pretended to say, "Well, let a classmate evaluate your work." In this way, the gun is aimed directly at the students, and the students have to answer if they don't answer.

The lecturer has a lot of wonderful highlights, which will be endless for a while. I think, if those highlights are applied to our classroom, our classroom will light up immediately.

The above points are just my own superficial views, please give us more valuable opinions!