Problem-oriented Design And Evaluation Of Junior High School Physics Experiment Teaching

Physics is a subject based on experiment.Experiment is an important part of physics course.Students can better understand and master physics concepts and laws through hands-on experiments.However,there are still many problems in junior middle school physics classroom teaching today.In the process of learning some knowledge of electricity,students are not familiar with electrical components,so they do not have a clear understanding of circuit principle and circuit connection.Lead to students in the experimental operation of the problem.Therefore,it is urgent to find a model that fits the physical experiment course to help students solve the above difficulties.In theoretical research part of this paper,first of all,by sorting out literature at home and abroad,it is found that the problem-oriented teaching model is extremely consistent with physics experiment course.This laid the foundation for subsequent research.At the same time,the lack of research by domestic scholars is found,which points out the direction for future research.This paper defines the problems to be researched in teaching and discusses the relationship between problem solving and problem-oriented research mode.This research identified based on the objective of teaching design principles and the evaluation method of the problem.According to the compulsory education curriculum standards and the requirements of NGSS in the United States,the experimental ability of students to be cultivated was sorted out.Firstly,educational observation method was used to conduct the practical part of the research.It defines the goal of classroom observation.The main focus is on problems based on experimental situations raised by teachers in teaching.The observation scale is designed according to the observation point.This research observed and evaluated three physical experiment courses with the same subject but different instructional processes.I have learned the skills of questioning and the experience of instructional design.Finally,summarize the shortcomings of the three teachers.The teaching design of this study is preliminarily based on the theory mentioned above.Then,based on the problem-oriented model,the teaching practice of Voltage Resistance in the physical and electrical part of junior high school was carried out,and the teaching design and the work sheet were optimized.Finally,through the analysis of the work order and the results of the pen and paper test,the paper evaluates whether the teaching mode can cultivate students’ experimental ability.After a period of teaching intervention,students have been equipped with the ability to raise and define problems,plan and carry out research,analyze and interpret data,use mathematics and computational thinking,construct interpretation and design solutions,acquire,evaluate and exchange information.To sum up,the design and evaluation of the teaching of electrical experiments based on problem-oriented model can help students to master electrical knowledge effectively.In addition,it can improve students’physical experiment ability.