Junior Chemical Validation Experiment The Effectiveness Of Classroom Teaching

Chemistry is a subject based on lots of experiments, which brings into effect in the part of cultivating students'mode of thinking and forming of students'good study habits, developing the capability of handling instruments as well. Chemical experiments become the most important means and medium to fulfill the ideology during the course of teaching practice. During the years when innovation of the courses has been carried out, the compiling of teaching material,the design of curricula and teaching practice and so on have changed a lot. At the same time there were all kinds of reform of experiments coming out. Today, people focus on the searching experiments and forget, at least, neglect the exit and the importance of validating experiments, so many people have a wrong orientation for validating experiments. In fact, junior students especially the students who come into contact with chemistry master only a little knowledge on it. It must be very difficult to carry out searching experiments and the mode of study all the time their ability and time . Additionally, stable foundation, normal manipulation and inspiring the students to participate are also important, so we must bring into play the function of validating experiments. Teachers should determine the ways of experiments according to the teaching target, content, object, condition, in order to be fit for the development of students'thought and feeling. So I decided to finish the theses"The research on improve the efficiency of validating experiments course in junior school chemistry experiment teaching".This searching subject has four parts: In the first part,by showing and interpreting the innovation of the courses standard, defining and comparing the validating experiment, searching experiment and searching study's conception and relationship among them, the author wants to explain the essentiality and importance of improving the efficiency of validating experiments course in junior school chemistry experiment teaching. In the second part, it is about the basic theory to support the search. In the third part, the author analyzes the factors which effect to improve the efficiency of the validating experiments in class, and she summaries several methods to promoted the efficiency and sets a lot of examples to explain her opinion. In the fourth part, it shows the result coming from questionnaires,teachers and students interviews,examination after the author carried out the project so that the students'ability of manipulation, quality of thinking and interest etc. can be evaluated.