Research On The Classification And Teaching Strategy Of Chemistry Experiment Design In Junior Middle School

With the implementation of the new curriculum reform,the new chemistry curriculum of compulsory education has made it clear that it's the breakthrough point for the reform of the curriculum,chemistry experiment is an important way for scientific inquiry for chemical disciplines.It's also the most important part of the students' ability of experiment.The research on classification and teaching strategy of chemical experiment design can not only enrich the research contents of chemical experiment teaching,but also provides reference for the teaching of chemical experiment design.On the basis of the literature review of chemical experiment design and teaching strategies,combined with the content of junior high school textbooks and the content of chemical experiment design,this study classifies the contents of experimental design in junior high school,and proposes the teaching strategy of chemistry experiment design.Second,according to the theory of Chemical experiment design,design and writing the teaching strategy of Chemical experiment design and so on three different modes of teaching cases:1.Junior high school chemistry experiment design from the perspective of chemistry can be divided into the following four categories:material preparation(or synthesis)experimental design,material separation and purification experiment design,material characterization experiments design,material properties and the change law of the experimental design.Each class can be divided into several sub classes.2.On the basis of all kinds of experimental design analysis,four teaching strategies are put forward,namely,the material preparation(or synthesis)experiment design method,the separation and purification of the material,the material properties and the design strategy of the experiment.