| The ordinary high school biology curriculum standard 2017 edition(2020 revision)"(hereinafter referred to as the" new ")clearly noted that the biology course to help students to adapt to the needs of future development and personal life,from the concept of life,scientific inquiry,scientific thinking,social responsibility four dimensions development of students biology core literacy,let the students in the process of learning gradually form the correct values,cultivate the necessary character and key ability.At the same time,it also points out that the teaching content of biology should focus on the big concepts,and the essential characteristic of biology teaching is to enable students to deeply understand and apply the important biological concepts,and further develop the core literacy of biology in the process of concept construction.This paper tries to combine the concept of life with unit teaching,and discusses the design idea of constructing the unit teaching of high school biology from the perspective of life concept,in order to help students to better construct the biology concept system and develop students’ core literacy of biology.First of all,on the basis of combining a large number of literature research and related materials,the research status of unit teaching design at home and abroad is sorted out,and the life concept,unit teaching and other related concepts are defined,and the logical relationship between life concept and unit teaching is discussed,laying a theoretical foundation for the subsequent research.Secondly,through a questionnaire survey of a high school biology teacher in Guiyang,Guizhou Province to understand the cognitive attitude and use of the unit teaching,and the current situation of biology concept teaching,it is found that some teachers do not pay attention to the connection between the biological concepts in the process of biology teaching;the process of unit teaching design;the use of unit teaching.In view of the above problems,the paper puts forward the unit theme,and constructs the unit teaching design idea and operation process based on the life concept.In order to help students to better complete the overall construction of the biological concept system,and permeate the cultivation of the core literacy of biology in the teaching process.Finally,in the process of teaching practice,with the concept of life "information",for example,"new curriculum" as the guide,selected the ordinary high school biology textbooks(version)compulsory two part of the genetics and evolution,the unit teaching case design based on the concept of information — "genetic information transmission and expression",and chose the practice school high two classes as the research object to carry out the teaching practice.The results show that the planning and design of unit teaching from the perspective of life concept can effectively help students to construct a complete and orderly biological concept system,improve the ability of biological concept construction,improve the methods of students ’concept learning,and have a positive influence on students’ knowledge mastery and the development of discipline core literacy.By reflecting and summarizing the problems in the research process and results,it is found that the unit teaching based on life concept can help teachers and students to grasp the biological concept system,effectively promote the biological concept teaching;the unit teaching based on the life concept can help students understand the inner connection between biological concept and the unit teaching design highlights the characteristics of the unit teaching,and further implement the new lesson. |