Research On The Practice Of Senior High School Biology Review Teaching Based On Cultivating Students' Systems Thinking

System thinking refers to the thinking ability of people to systematically understand,analyze and solve problems.It is a key skill for students to face complex relationships or deal with complex social problems when they enter the society in the future.It is a systematic project for students to prepare for the college entrance examination.Students' learning arrangement,teachers' teaching organization strategy and the content of teaching materials are all important factors that affect the efficiency of preparing for the college entrance examination.If the teacher's "teaching" and the student's "learning" are respectively regarded as two small systems in the preparation for the college entrance examination,we can use system thinking to make an overall analysis of the relevant factors from a systematic perspective.Students prepare for the exam generally including "understanding knowledge,carding knowledge and use of knowledge" three important links.Found in the process of practical teaching,many students because of system thinking quality is not high,tend to focus your study time in the first and the third section,the excessive energy is used to answer questions,often ignore the comb "knowledge" the key link,give play to the role of bridge in topic topic to answer the same intellectual content,repeated errors.The weak ability of students to construct knowledge system is closely related to whether teachers systematically organize students to construct knowledge system and students' own construction consciousness and construction behavior.Therefore,this research in biology review process,from the perspectives of construction and guide the students to prepare for study in biology as a "big system" project,the understanding of biological knowledge content,construct biology knowledge system and solve the problem of biology as a connected "small system" project,mainly by teachers organize students to construct biology knowledge system,While helping students to develop their system thinking spirally,it also helps students to prepare for the exam efficiently.This topic mainly adopts literature research method,investigation research method and experimental research method.First of all,this study reviewed,sorted out and summarized the background and connotation of system thinking as well as the research status at home and abroad,and on this basis,clarified the research objectives and strategies,and designed the biology knowledge system and special writing sheet related to the biology teaching content in advance.After that,in the spare time of biology practice class,the students were organized to construct the biology knowledge system in the experimental class.In the control class,the students are organized to learn the knowledge content corresponding to the knowledge system constructed by the experimental class.The biological performance and the level of system thinking of the students in experimental class and control class were evaluated respectively before and after the study by using the periodic biology examination and the system thinking test questions of senior high school students.The results show that:teachers organize students to construct biological knowledge system,which can help students master professional knowledge,improve problem-solving efficiency,improve learning habits and enhance systematic thinking.In the process of research,it is also found that students lack systematic understanding of the construction of biological knowledge system and their participation is different.Therefore,this study suggests that teachers should strengthen the construction guidance,enrich the construction forms and timely evaluate the relevant classic questions in the process of organizing students to construct the biological knowledge system.