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What is a regional teaching review?
The district teaching comments are as follows:

Fan Wenyi:

This morning, after listening to Teacher Wu's Cognitive Zone in the third grade group, I felt deeply that there were the following highlights.

1, focusing on scenario creation.

The study of mathematics knowledge is sometimes very boring. In this class, the teacher runs through the task of "Despicable Me", which makes the original boring math concept class interesting and effectively drives and maintains students' interest in learning.

2. Pay attention to exploring the experience.

Activity is the main way for children to perceive and know the world, and it is also the initial way for children's social interaction. In this class, the teacher used touch, painting, comparison and other methods to lead students to explore independently and fully experience, and truly realized the practical significance of the region.

3. It embodies meaningful learning.

In the study of this lesson, teachers pay attention to guiding students to understand the connotation of area from reality, and the concept understanding method is flexible. Through physical examples, let students understand and master by hand, instead of memorizing concepts. Teachers also make full use of students' existing knowledge and life experience to help students deepen the meaning of area and distinguish the perimeter.

Fan Wener:

The study of mathematics knowledge is sometimes boring, especially for junior students. In this lesson, Mr. Liu Min starts with the common plane graphics around students, and then creates problem situations to urge students to participate in the new lesson with great interest. The teaching process embodies the idea of "let students experience the whole process of knowledge formation" in the new curriculum standard, which has advantages.

1, a solid grasp of the concept.

At the beginning, Mr. Liu let the students intuitively feel the surface size of math books, tables, blackboards and pencil box covers, and then let the students compare the size of blackboard and math handwriting, and get the meaning of area through comparison.

2. Experience the diversity of strategies, and perceive the advantages of block measurement.

Teacher Liu asked the students to guess the size of the two graphic areas first, so as to stimulate the contradiction. Then guide students to use the learning tools provided by teachers, cooperate and communicate at the same table, and choose their own tools for measurement and comparison. Let the students experience the diversity of strategies to compare the size of the area, and initially feel the advantages of measuring and comparing with the square.

Fan Wensan:

This lesson is based on students' understanding of rectangles and squares, and learning to calculate the perimeter of rectangles and squares. Teachers must deeply understand the intention of compiling textbooks, use a wide range of curriculum resources for teaching, and develop students' spatial concepts in the process of learning the knowledge of this lesson. So as to prepare for the follow-up study of area unit and area calculation. Teacher Luo's class impressed me deeply.

1. Learn mathematics and establish concepts in a rich life background. In this class, Mr. Luo makes full use of students' existing life experience to guide students to gradually understand and understand the meaning of area. First, by touching the desktop of the book, we can find out what activities are around us and initially perceive the meaning of the area.

2. Deepen the concept in a series of different exercise designs. Primary school students' thinking is in the stage of gradual transition from image thinking to abstract thinking, and the thinking process depends on concrete images. Teacher Luo designed various gradient exercises according to the psychological characteristics of middle school students, which aroused students' strong interest in learning.

3. In this class, whether it is to understand the meaning of "area" or to let students estimate and measure the area of graphics with different area units, Mr. Luo gives students enough time to study and study by himself through activities such as observation and spelling, so as to deepen their experience of the importance of establishing a unified unit of measurement.