A preliminary understanding of the teaching plan of mathematics corner in grade two
Reflections on the teaching of preliminary understanding of mathematics corner in grade two "Preliminary understanding of corner" is based on students' preliminary understanding of rectangle, square and triangle. Because the corner is an abstract concept for second-year students, it is difficult for students to understand. Therefore, in order to help students better understand what they have learned, I will organically run through all aspects of teaching, such as observation, operation, experiment and self-study discussion. Guide students to abstract and summarize on the basis of perception. In this lesson, I mainly designed the following main links: finding the angle, saying the angle, folding the angle, comparing the angle, drawing the angle, and knowing the names of each part of the angle. In view of these connections, I made the following thoughts:
First of all, in the teaching lead-in, starting with the previously known plane graphics, it is presented in the form of games, which not only stimulates students' interest in learning, but also reviews the relevant knowledge of plane graphics, laying the foundation for the next learning angle.
Secondly, make full use of the theme map in the teaching process, and use the theme map to find the angle. After finding many corners, the teacher presents three representative corners. Let the students find their own similarity: 1 vertex and 2 edges. The teacher conveniently summarizes the names of each part of the introduction angle and uses courseware to judge the angle. After reading and talking, fold the angle and compare the angle. The penetration angle has nothing to do with the length of the side. The last link is drawing, learning to draw corners. Through the video to show the methods and steps of angle drawing, the angle drawing operation is finally completed and shown independently.
Finally, teachers and students can deepen their understanding of the diagonal by summing up children's songs, and remember the names and drawing methods of each part of the corner, symbolizing the age characteristics of children in lower grades, which students are interested in remembering.