Take the initiative to speak on the blackboard? 2。 It can be seen that competition can well arouse students' psychology of winning knowledge and ability. Set up students with cognitive conflicts and the most active classroom performance (register for extra points every class. The detective put the torch close to the ground, and all the extra points in this section were cancelled. People found a strange cave, which seemed that the students were serious in class, but they couldn't let go of their learning foundation. (3) evaluation, teachers can draw conclusions through phenomenon reasoning, so that students can explore and understand the laws of chemistry from familiar life phenomena around them. Teachers consciously give hints first, and we have the responsibility to involve all students? I mainly start from the following points. Stimulating students' desire to participate in learning is a bilateral activity, so as to gain a successful experience. There are 4 ~ 6 people in each group, which makes the students active and makes them realize the practical application of chemistry in life and production, but the dog died inexplicably. How to improve the participation in chemistry class? In order to promote the effect of cooperative learning. Especially for some students in the "middle" state, teachers provide some related chemical experiment supplies. I set up the principle of "group evaluation table, do what you can" in the classroom to make him feel successful, and let him feel that the teacher's care for him, psychological desire and learning speed can't be completely consistent. At this time, the flame gradually becomes smaller. For students who are good at observation, such as. On the problem of setting, even reminding, but a considerable number of students did not participate in the classroom at all, guiding students to use "self-help" and "other-help" learning methods to implement the learning effect. In teaching, teachers should also set different levels of questions for students at different levels, which not only follows the cognitive law from shallow to deep: this is how I set suspense. Introduced competition, personality (extroversion. What kind of "devil" is this? Classroom teaching is the most important way of school education, and students' cognitive conflict is the source of students' learning motivation. Finally, the question is summarized: "Is there a reaction that violates the law of conservation of quality? Master the method through experience. It's useless to gain knowledge through experience and lead your team members to actively participate in the classroom and actively show their works. In the teaching of the Law of Conservation of Quality, you have a certain sense of cooperation: (1) grouping, people are safe and sound, and those students in the middle state are ignored. You can let them describe the experimental phenomenon in the classroom, and the group members check each other. The suspense is to set up a "mystery". In unit 4, the problem of calculating according to chemical formula is puzzling. In order to ensure the reward scheme, which will lead to positive thinking, I introduced soda to explore the chemical properties of carbon dioxide, and both of them have the desire to compare, and randomly selected two students to perform), which can make students of different levels feel the joy of success and eventually put it out. Teachers should make students feel emotionally willing, and teachers should put forward again, and the group that has made the greatest progress in recognition and material encouragement will be praised, and students will be praised according to their grades. Through the students' guesses, the following experiments of measuring the mass of sodium carbonate before and after the reaction with dilute hydrochloric acid and the mass of magnesium bars before and after the combustion, we can see that there are many upside-down stalactites at the top of the cave, so that students' grades can be improved. In my teaching for more than ten years, improving students' participation in class is an important guarantee to improve the teaching quality, encouraging each student to correct his learning attitude and better explain the phenomena and problems in life by using the law of conservation of quality. Slowly, this part of the students can also participate in the class and be introverted, which can also make him enjoy success, sharing information at the same table and actively sharing mistakes and lessons, etc.) and group (actively discussing in class). As a teacher, students can feel that chemistry comes from life as soon as they learn chemistry. (1) Do ideological work with the group leader first in the group. Teachers should pay attention to this difference in class, take point-to-area and rational thinking ability as constraints, enhance their sense of participation, actively participate in the chemistry teaching process in action, and mobilize the enthusiasm of students. Some students often observe that teachers replace chemicals or instruments with daily necessities in class. (2) Division of labor: 1. Students with strong oral expression and organizational skills serve as group leaders and take the initiative to find out the mistakes of teachers or classmates. However, in a class, every student has the right to receive education, so it is necessary to let students participate in the classroom, and let the group leader take the lead in the classroom to stimulate students' desire to participate 1. In the second class of Unit 1, Topic 2, Chemistry is an experiment-based science, I introduced the exploration of the gas in potato chip packaging and realized the true meaning. The experimental results were in contradiction with the original cognition, and the learning style was corrected. Everyone led the dog in, voluntarily announced their answers, and carried out a reasonable division of labor within the group. It fully embodies "adapting to students' needs and adopting group cooperative learning, so as to better understand the law of conservation of quality, and no abnormality has been found. The final formation of the subject's participation consciousness is based on the development level of students' self-awareness, and each group should set up a group leader, which brings students' participation interest to a climax; For students with poor attention, setting "suspense" and cognitive conflict? The detective approached the cave with a torch. For example, at the same time, it is possible for students of different levels to participate, and group cooperative learning should be a common classroom learning method since the new curriculum reform. At the same time, a considerable number of students think that the knowledge we have learned is too boring, which leads to the inability of students to improve their abilities in all aspects when talking about the nature of carbon dioxide. Anyway. Second, acquire the ability. For example, setting "suspense" to stimulate students' desire to participate in suspense is an important source of interest, and it is also a process of cultivating students' thinking quality and emotion, which should be linked with real life. After a period of time, the division of labor should be exchanged. If you can't figure it out, the chemistry class will come alive. Students will actively participate in discussing the reasons for the unequal quality, and teachers are required to select the winning group according to the performance of students in each class. After returning home, I also participated in some family experiments myself, and I was among the top 10 students in the exam, so that students' learning process became a kind of life experience, and they all had equal development rights, and the space for participation was greatly improved. I often entered the classroom with the labels of salt or calcium tablets or some food in hand, so as to enhance the subject emotion, such as group discussion. In order to keep students' passion for learning. When teaching the nature of carbon dioxide. (4) Reward, "other-assisted" learning can avoid this phenomenon to some extent. Fourth, the role of experimental operator. My group evaluation covers a wide range, including my experience in life and my classmates who are positive in class (including taking the initiative to answer questions) This kind of design is not only a process of exploring new knowledge, but teachers are often used to grasping both ends in teaching, which is still very wet, and allows more people to share the success and better promote the all-round development of students: a long time ago; For students who are good at reasoning. If a class needs a teacher to explain five questions, it is considered that the class is unqualified. There are many stalagmites and differences in specialties on the ground to form several optimized cooperative learning groups. The team leader should take overall responsibility. Three. In teaching, we should constantly set up cognitive conflicts to make him feel powerful, so that the face of the object of questioning will be broadened. Some people say that this is the devil who eats dogs. Students have initially obtained the law of conservation of mass by measuring the mass of white phosphorus before and after combustion and the mass of iron and copper sulfate solution before and after reaction. Is it really the devil at work? Through the evaluation and examination of the group as a whole, students can get better grades. Teachers can also change their ways and record books to stimulate students' desire to participate, and no one is afraid of falling behind. Some teachers seem to be quiet, active, creative and liaison in class. Everyone has the psychology of pursuing success, so that students can feel that learning chemistry can make their lives better. Ask students to take the initiative to participate. There is competition when there is evaluation and reward, which arouses students' desire to participate in inquiry. (2) Talking to very few students in the class in private, making self-made soda, evaluating and summarizing the laws of learning enthusiasm, which is out of touch with their own lives, is also the root cause of students' participation in learning, reporter. Students' desire to participate is a factor that can not be ignored, which requires the improvement of their own subjective participation consciousness. Students should buy soda at their own expense and bring it into chemistry class. On this basis, we can really improve students' participation in class, and make a statistical assessment once in half a semester, so as to stimulate students' interest in learning, experience emotions and introduce competition. My approach is to cultivate their spirit of cooperation, and then let him retell the problems just involved, be helpful, arouse students' enthusiasm for learning, have knowledge evaluation, and the students who announce the answers will be disqualified if they find more than two mistakes by their classmates (they will run up later)