Research On Teaching Target Design Strategy Of High School Chemistry Unit Under Core Literacy

The Chemistry Curriculum Standards for Senior High Schools(2017 Edition and2020 Revision)gives a detailed interpretation of the curriculum objectives,teaching contents,evaluation standards and other aspects of chemistry in senior high schools,which summarizes the core accomplishment of chemistry discipline.The chemistry curriculum for senior high schools is the basic course for implementing the core accomplishment and cultivating people with morality.It is the key point of teaching and the ultimate goal of discipline education to realize the purpose of teaching and education by thinking about how to apply the education of core quality to students' study and life,and imperceptibly influence students' inner behavior and moral character.Teaching goal is the expectation of the teaching process and students' learning result,and it is the starting point and foothold of all activities.However,unit teaching goal is the premise of the implementation of class hour goal,and instructional design can internalize and transfer knowledge to students,so instructional design needs the guidance of instructional goal.This paper investigates the current situation of high school chemistry teachers in teaching objective design and unit teaching by means of literature survey and interview,analyzes the problems existing in the current unit teaching objective design,and puts forward the design strategy of unit teaching objective.Based on the educational requirements of the core quality of chemistry discipline and the necessity of unit teaching,a series of theories and core concepts of the design of unit teaching objectives are summarized.The investigation on the current situation of the design and implementation of high school chemistry unit teaching objectives found that teachers recognized the importance of the design of unit teaching objectives,but there are some difficulties and confusion in the implementation process.In order to solve the current dilemma of the design of unit teaching objectives,this paper puts forward the design strategy of unit teaching objectives.The goal design strategy is put forward from four aspects: task orientation,three-dimensional goal transition to core accomplishment goal,concept construction and evaluation of chemical accomplishment.Taking the unit of "metals and their compounds" as an example,the teaching objectives of the unit are designed.Taking the class hour of "sodium compound" as an example,the unit teaching objective is transferred to the class hour teaching objective,and the design of the class hour teaching objective is evaluated.Through the research,it is found that teachers have some problems in the expression and practice of the design of unit teaching objectives.The new curriculum standard advocates the teaching based on the core quality of the subject,and in the teaching process,the subject quality of the students should be practically cultivated.The unit teaching goal is the starting point of the teaching process,and because the unit goal is between the course goal and the class hour goal,the design strategy of the teaching goal is discussed from the unit,which provides some theoretical guidance for the design of the class hour goal and the unit teaching goal.