Before this class, I checked whether the students brought their school tools. As a result, many students forgot to bring their wool. I gave my own wool to my classmates who didn't bring it, so that everyone in the class could have wool. In this course, I attach great importance to students' forming concepts from operation and consolidating and improving them. Starting from the new lesson, I ask students to turn the curve on the table into a straight line. All the students began to straighten the team. Then the section between the two hands is the line segment, and the two ends of the hand are the endpoints of the line segment. Let the deskmate combine the numbers and shapes with each other, so that students can remember and understand them easily. Thirdly, folding a segment by hand, then folding a segment longer than this segment and a segment shorter than this segment can expand students' thinking. In the whole operation activity, we do not operate for the sake of operation, but organically combine operation, understanding concepts and mathematical thinking. It vividly shows that the line segment has a length and can be compared and measured. It cultivates students' ability to acquire knowledge, observe and explore.
This class is beyond my expected teaching effect. Students' participation is very active, their hands-on ability is strong, and the classroom atmosphere is very active. My classmates learned new knowledge in a pleasant environment, and I was secretly glad. Unfortunately, there are still many children who are eager to show off, but they are not given enough opportunities to show off.