One lesson is the wide-angle content of mathematics in the first volume of the second grade of People's Education Press, which mainly focuses on permutation and combination. According to the requirements of teaching objectives, I chose several scenes that are common in life as the starting point, so that students can achieve the objectives through their own experiences in the process of playing games. Summarize the experience in the process of trial teaching and talk about some experiences and thoughts after the end of this lesson.
1, cleverly set up scenic spots and make links effectively connected.
Drawing lessons from not effectively connecting all the links in series during the trial teaching, we try to introduce them in the form of fashion street, digital garden, photo studio and happy valley, and regard the wide angle of mathematics as an amusement park. These are all close to students' lives, so that all links in actual teaching can be effectively connected and students are interested. For example, I went to Fashion Street and said that the teacher had selected some clothes and bottoms there. Can you match it for me? Students' attention naturally shifts to the collocation of clothes; As mentioned in the studio, we often like to take a photo when traveling, and small animals also want to take a photo when they are wide-angle in mathematics. Can you help them form more teams? It is also easy and natural to lead to the problem of animal arrangement.
Star action makes the classroom look brand-new.
Junior children, their learning needs are not only for their own needs, but also for the praise of teachers, parents and other adults or other external rewards. Therefore, according to the psychological characteristics of junior two students, I designed the action of picking stars. At the beginning of class, I posted a row of colorful stars on the blackboard to tell the children that good children can get a beautiful colorful star. In order to get this beautiful star, every child secretly competes with himself in the class and tries to show his best. Judging from the actual teaching effect, the classroom is brand-new. In the future teaching, according to the characteristics of lower grade children, this way can be used to stimulate students' enthusiasm.
3. Pay attention to experience and let students feel it in practice.
In the teaching of this class, I didn't use multimedia, but used self-made teaching AIDS to teach. Whether it's the collocation of clothes, the composition of double digits, or the problem of taking photos and shaking hands, I try my best to let students gain insights through hands-on experience and integrate knowledge acquisition into various activities, which is more in line with the learning and cognitive characteristics of junior two children. The whole class is also full of childlike interest, allowing students to experience the fun of helping others and feel successful.
In the second day of junior high school, I listened to a third-grade math class, and the math was wide-angle. In this class, the teacher prepared school cards for the children, which created a space for children to operate and provided a space for communication and thinking, and received good results.
1, pay attention to the child's hands-on operation. Are you working hard? Clothing matching? In this session, the teacher provided the children with pictures of clothes, and the children were completely moved. Some put the cards on the table, others draw them on the homework paper and connect them. Through these activities, children can easily find a reasonable way to match (no repetition or omission). It is precisely because children have gone through the process of spelling cards that the difficulty is reduced and the rules are found smoothly. It also reminds me that I want to infiltrate the children with the knowledge of simple arrangement and combination in the class of "Wide Angle of Mathematics", just like this class, but my textbook is passing? Use two cards and three cards to put different two digits? This material is presented. In teaching, instead of preparing digital cards and electronic watches for children, I use the method of letting children draw in notebooks. I feel that some children are not very clear about the rules of card combination, and there are omissions in practice. If in actual teaching, I also prepare digital cards for children, so that children can make a pendulum and experience the process of pendulum and group, the effect may be better.
2. About group cooperation. In this class, teachers work in groups. Group cooperation provides a relaxed atmosphere and communication platform for children. It is very lively for children to get together, but I think that in order to make group cooperation more effective, teachers must divide their work among group members, and each student must know his own task. For example, in this class, the teacher prepared clothing cards and homework sheets for each group. So there was some confusion in the group inquiry. Some children are scrambling to set up cards, while others are scrambling to answer their homework. No one sat down to observe and communicate carefully, which greatly reduced the effect of cooperative learning. The establishment of study group needs a process, and children's cooperative learning ability is also cultivated bit by bit in our usual teaching. Let's work together!
Reflecting on the wide-angle listening of mathematics in grade three In this class, I think there are mainly the following characteristics:
1, create a situation to stimulate interest. Each teaching link is connected by a story about the trip to the kingdom of mathematics, which puts students in the story situation, so that students can learn mathematics easily and enjoy happiness in mathematics learning. Practice shows that students are very interested in the problems in the situation, can actively participate in learning, and the classroom atmosphere is active.
2. Learn knowledge through various methods. In the teaching of this class, the teacher is not the commander of students' learning, but the partner of students' learning activities. I make full use of the learning method of group cooperation and inquiry, so that students can explore in activities and give them enough space for exploration. Improve students' hands-on operation ability, let students use their own brains, put numbers by hand, and exercise their independent thinking ability.
3, contact life, cause thinking. The arrangement and combination are abstract, and primary school students often lack perceptual experience. Only by gaining direct experience through practical operation can we easily understand the methods of permutation and combination, and thus discover the laws of permutation and combination. So in this class, I created many conditions for students to apply the knowledge and methods learned in class to real life. Put the numbers? 、? Shake hands? 、? Pay? 、? Matching clothes? 、? Take the route? These five activities. Through these activities, students can learn and feel mathematical knowledge in practice, so that students can have a more concrete feeling about permutation and combination, and at the same time deepen their understanding of permutation and combination. Let students fully feel the connection between mathematics and life, and mathematics is really around me.
4. Take various incentive measures. Praise and encouragement are the driving force to promote students' progress and an important factor to continuously improve their interest in learning. In this class, I praise and encourage students in many ways, and make demands on students with the help of stories, so that students always feel that the past of the mathematics kingdom has been paying attention to them. It improves students' learning enthusiasm, makes them fully experience the joy of success in activities, and inspires students' confidence in learning mathematics well.
5. Infiltration of emotional attitudes and values. In the process of learning to shake hands in teaching, I taught the students the etiquette of shaking hands and let them know the most basic common sense of etiquette. In the table tennis hall, I infiltrated the idea of actively helping people in trouble.