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Design Miniaturization Of The Experiment In High School Chemistry Textbook

Posted on:2014-05-27Degree:MasterType:Thesis
Country:ChinaCandidate:Y J ShiFull Text:PDF
GTID:2267330425954047Subject:Subject teaching
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The chemical curriculum reform of high school in our country that based on sufficient international comparison and investigation and empirical study and historical research has conducted, that aimed at the chemical curriculum requirements of new social development situation and some of the disadvantages in chemistry education now. Chemistry new curriculum reform of high school stress the importance of chemical experiment. With the deepening of new curriculum teachers understand further deepening of new curriculum concept. As the important content of chemistry teaching chemical experiment teaching is also changing quietly. That the boundaries of the demonstration experiment and student experiment had been diluted is the most obvious point. Chemical experiment stress on exploration. But at the same time, it also exposed some new problems when chemical experiment teaching has being implemented. As a form just to cater to the new curriculum experiment, more confirmatory experiment, Inquiry experiment is lack. More demonstration experiment and student experiment is less. Experimental drugs pollute the environment, experimental condition is poor, lacking of instrument drug trials cannot be done, Lack of laboratory, laboratory technician labor intensity. Current experiment teaching status quo of the obviously cannot really play chemistry experimental teaching of basic education function, not to mention let students experience the process of scientific research, stimulate interest in learning chemistry, strengthening the consciousness of scientific inquiry, change the way of promoting learning, cultivate students’ innovation spirit and practice ability. In today’s knowledge update quickly, human development is the development of various abilities, in order to meet the demands of a new age, in order to enable students to adapt to modern life and the future social development, relevant experts and chemistry educators should think a way to change that.Microscale laboratory refers to as little as possible of chemical reagent in the miniature chemical experiment apparatus, in order to get as much as possible the required chemical experiment information of experiment method and technology. Miniature chemistry experiment technology emerged in the1980s, due to the method has the advantages of shorter reaction time saving environmental safety, therefore study actively promote the use of many countries worldwide. Micro chemical experiment research in China is carried out under Ninghuai Zhou professor advocacy and promotion of, and has been widely attention. In view of the present high school chemistry curriculum reform urgency call and the current situation of chemistry teaching, basis on the theory of constructivism and humanism, in line with scientific greening, interesting principle. This paper put forward some experiments in the high school chemistry teaching material for miniaturization design. Miniaturization experimental teaching design can be implemented smoothly, whether through miniaturization experimental teaching to change student’s study way, is it possible to make experiments by students themselves stimulate students interest in learning chemistry, with the research objectives, the author perfected in YanQiYiZhong, select one of two parallel class for a semester contrast teaching, through the statistics and analysis of the two experiment exam grades class four tests to come to the conclusion. First, the micro chemical experiment teaching design in the teaching process smoothly, In teaching high school students need actively collect the micro experiment, experiment with great enthusiasm and curiosity in the inquiry activity implementation process through concrete experiment teaching cases we found that the micro experiment there are many other incomparable advantages. For example, reagent consumption, experiment cost is low; Environmental pollution reducing security is good; Experiments to save time, it is easy to conduct, to arouse students’ interest in chemistry strengthening practice ability training. But, at the same time, we also found that the micro experiment has some shortcomings. Some experiments need to precipitation strengthening heat extraction separation, for example, miniature experiment cannot achieve, can only be done with conventional experiment. So we come to the conclusion that not all of the experiment can be designed for miniaturization, to deal with the relation between the micro experiment with conventional experiment, the two complement each other to promote each other, there is no who is who of the ornament, also can not completely replace.Through the writing of paper we introduce the micro scale laboratory, hope to be able to realize the education function of high school chemistry experiment teaching, to make a little contribution for the new curriculum reform in high school.
Keywords/Search Tags:chemistry curriculum standards, micro scale laboratory, teaching design, practice research
PDF Full Text Request
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