Research On Design Of Physics Unit Homework In Junior High School Under The Background Of “Double Subtraction”

Physics is a basic subject in junior high school,which plays an important role in cultivating students’ logical thinking,scientific consciousness and world outlook.In the past junior high school physics teaching,students had to complete a lot of physics homework to carry on the physics study,and the study burden was heavy.In recent years,the burden reduction of primary and secondary schools has received special attention from people from all walks of life.With the proposal of the "double reduction" policy,homework related research has also received extensive attention.Under the background of "double reduction" policy,unit homework design is a new idea to reduce the study burden and improve the study quality.On the one hand,the unit homework design must plan the unit homework objectives,contents and evaluation methods as a whole to avoid inefficient operations,so as to achieve the purpose of reducing the burden;On the other hand,unit homework design pays attention to the integrity of students’ knowledge construction from the homework objective,the comprehensiveness of students’ literacy cultivation from the homework content,and the process of students’ self-cultivation from the homework evaluation,which can give full play to the quality improvement value of homework.This study learned about the current research direction and results of homework design by consulting relevant literature,and learned about the current situation and some problems of junior high school physics homework through questionnaire survey of some junior high school students in Nanning and Beihai,Guangxi.On this basis and under the requirements of the "double reduction" policy,the idea of junior high school physics unit homework design under the "double reduction" background was put forward.Based on the theory of physical core literacy,the theory of Constructivism and the theory of the zone of proximal development,this paper discusses the basis and practice path of unit homework design in junior high school physics under the background of "double subtraction",expounds the design ideas of unit homework,designs unit homework cases,analyzes and summarizes them,and finally,through teaching practice research,The designed junior high school physics unit homework is tested by means of experimental comparison.Through the teaching practice of two classes in junior middle school,the author tested the effect of homework design of physics unit in junior middle school under the background of“Double subtraction” through the contrast analysis of pre-test and post-test experiments.On the basis of practice summary,the author draws a conclusion that the physical unit homework designed by the author has the following functions in teaching practice: to carry out the fundamental task of setting up morality and cultivating people,and to give full play to the all-round educational function of physics curriculum;In accordance with the cognitive characteristics of students,fully respect students’ individual differences;unit overall planning to promote students’ in-depth learning.The result of the practical research shows that the homework design of physics unit in junior high school has certain reference value in the teaching practice under the background of“Double subtraction”.