1. Situational introduction leads to students' active participation. In the class introduction, I demonstrated such a situation: I drew a big tree on the blackboard and stuck three green apples and two red apples on it. The teacher took two more red apples, and then asked the students to tell the process of the teacher's demonstration. Q: How many apples did you take? How many are left in the tree now? At this time, the students were in high spirits, and most of them raised their hands. Huang of our class actually said, "There were five apples on the tree, but two were taken away and there were three left." Before coming to praise, Que Wenjian said, "Teacher, you can solve it by subtraction." Cold sword Zen way: "It can be written as 5-2=3." The children's answers were beyond my expectation, so they led to "subtraction" and knew the negative sign. My students introduce new lessons through familiar life situations, arouse students' original life experience and stimulate their enthusiasm for learning. Students must be kind, practical, easy to understand and interesting to learn, so as to pave the way for learning new knowledge well.
2. Further understand the significance of subtraction and pay attention to cultivating students' oral expression ability and questioning ability. In this link, most students have been able to put forward a problem completely and know how to solve it by subtraction. The teaching method embodies the spirit of taking students as the main body, allowing students to pose, talk, talk and play with middle school, and cultivating students' cooperation and communication. In the first question 1 of Practice, through the process of students saying pictures, making gestures and then writing formulas, in the second question, through the process of making students make a gesture and then writing formulas, not only can every child have the opportunity to actively participate in learning, but also students can fully feel and understand the significance and algorithm of subtraction.
This class still has some shortcomings:
1. Students actively participate in the classroom, and everyone is eager to try. However, for children who have just entered school, they have not developed the habit of listening carefully to others' ideas and are eager to express their opinions, which leads to a bit of confusion in the classroom, which is not conducive to students to develop good listening and communication habits.
2. In teaching, I pay more attention to most students, while ignoring individual students with learning difficulties, which is also an important part of my future teaching. I pay attention to underachievers and try to provide them with opportunities, guidance and help in class.
3. In the last link, let the students "tell me what you have learned?" Students can't fully express themselves yet, and the newly enrolled children need to be further improved. In the future, I will focus on cultivating students' oral expression ability and summary ability.