CFLS | Chemistry online seminar for Senior One

On April 19th, Ms. Yang Chunna had a chemistry online seminar for Senior One.

Before the class, Mr. Yang carefully prepared, and the whole group of teachers carefully polished. According to the characteristics of online teaching, they tried and discussed various aspects such as teaching content, teaching methods, and teacher-student interaction to explore the most optimized teaching mode.

In this class, Mr. Yang starts from the safe use of alcohol, which is a necessary disinfectant in the epidemic, and leads to the research object-ethanol. Combined with students' cognition of alcohol in life, the physical properties of alcohol are summarized. The catalytic oxidation reaction of ethanol is derived from the scene material of silverware and copperware welding. According to the process of alcohol metabolism in the human body, the reasons for the differences in the amount of alcohol in different people are explained. Finally, leave the homework of making the poster "Rational Use of Disinfectants" to end this lesson. The teaching design reflects the concept that chemistry comes from life and serves life, so that students can fully appreciate the close connection between chemistry and life and learn useful chemistry.

This class adopts task-driven teaching, taking into account the two main lines of knowledge goal and ability goal. Through the analysis of the typical structure and properties of organic matter, it helps students to establish a cognitive model for organic matter. Through the comparison and transfer of knowledge before and after, the scattered knowledge points are connected into lines and woven into a network, so that students can gradually form the cognitive ability of organic learning in the process of knowledge learning, and turn "knowledge" into "skill". The requirements of the new curriculum reform have been fulfilled, and the scientific literacy of students has been improved.

The focus of this lesson is the influence of the structure of ethanol on the properties, and the difficulty is the mechanism of the catalytic oxidation reaction of ethanol. In order to break through the difficulties, Mr. Yang adopted teaching methods such as observation, experiment, discussion, analysis and induction. When studying the reaction of ethanol and sodium and the catalytic oxidation reaction of ethanol, Mr. Yang started with experiments, arousing students' interest in learning, and through observation and analysis, he came to the conclusion of the reaction, and then found the mechanism of the reaction from the structure, and put the ethanol Comparing the reaction with sodium and the reaction of water and sodium to help students deeply understand the influence of structure on the properties of matter, followed by targeted exercises, let students try to apply the knowledge to solve problems, and understand the knowledge in the process, gradually Form a cognitive model, and then improve the ability and increase the "ability". Due to the limitations of online teaching, it is difficult for teachers and students to interact with each other. Mr. Yang makes full use of the chat function of the Tencent conference platform and the simultaneous use of QQ homework to achieve effective interaction between teachers and students and effectively improve the effect of online teaching.

After the class, all the teachers of the Chemistry Teaching and Research Office had a lively discussion with Professor Yang Guanghui and Hu Chengxu, the Chemistry Teaching and Research Fellows of the Senior School of Jilin Province Education College. Professor Yang Guanghui spoke highly of this course. From the perspective of in-depth learning, Mr. Yang believes that a large number of student activities are designed and implemented in this class, which fully reflects the dominant position of students. Students experience the process of knowledge formation in learning activities, improve their ability to explore new knowledge, and achieve literacy. Ben's new course concept can be regarded as a good course for the implementation of literacy. At the same time, Mr. Yang also pointed out that this class has designed a lot of teaching content that is related to life and practice, such as precautions for the use of alcohol as a disinfectant, the process of alcohol metabolism in the human body, and the principles of alcohol disinfection, etc. These knowledge fully reflects the value of chemistry. Finally, Mr. Yang also gave pertinent opinions on some problems in this class. The entire discussion process has benefited all chemistry teachers a lot.

Teacher Hu Chengxu, a provincial teaching and researcher, evaluated this lesson from the perspectives of teaching design and student activities. Ms. Hu believes that Ms. Yang Chunna's teaching design is closely linked, and guides students from the phenomenon to the essence, from the macro to the micro, to deeply understand the relationship between the structure and properties of ethanol, which reflects the core quality of the combination of macro and micro disciplines. In the whole teaching activity, students fully participated, and a good teacher-student interaction was achieved in the online teaching. In addition, Mr. Hu also integrated the compulsory and elective textbooks, and put forward his own viewpoints from the advanced design of the overall ethanol teaching, which played an important guiding role in the teaching of alcohol and refreshed the teachers of the whole school.

During the discussion, the teachers of the chemistry group also spoke. Teacher Mu Donghua, a senior teacher, commented on the teaching details and pointed out the highlights and shortcomings of this lesson; Teacher Zhou Yanjie and Teacher Luo Rui affirmed Teacher Yang Chunna's courseware production and media use; From the perspective of junior high school teaching, he put forward his own views, and pointed out the meaning and necessity of the connection and integration of junior high school and high school; Mr. Yao Linran also reflected on his own teaching based on Mr. Yang's class. All the participants also conducted exchanges and discussions on the method of online teaching and the form of teacher-student interaction. The whole discussion process was lively and the content was in-depth, which achieved good results. In the end, President Yang Zhongshan also made a concluding speech on the event, and put forward pertinent opinions on the teaching activities of the chemistry teaching and research section.

In this teaching and research activity, there are vivid lessons, profound thinking, and wonderful comments. The whole group of teachers will make use of the online teaching seminars to make continuous efforts, and strive to turn our school's chemistry classroom into a solid classroom, efficient and effective. Classroom, there is no best, only better. Teaching and research, we have been on the road!