The Research On The Design And Evaluation Of Life Experiment Based On Middle School Chemistry

Chemical experiment is the basis of chemistry teaching and the basic approach of chemistry learning.Experiment plays an important role in stimulating interest,cultivating innovation ability and training ability.The paper explored the experiment of life experiment from three aspects:experimental design,experimental implementation and experimental evaluation scale design.Through the actual feedback of teachers and students can be concluded:life experiment with practical and scientific,can supplement the middle school teaching materials experiment,can provide reference for middle school chemistry experiment teaching.Part ?.Introduction-Elaborated the implementation of the current life-oriented teaching in China from three aspects:books,thesis and the first journal,and expounds the research significance and research of the life experiment under the background of the new curriculum reform purpose.Part ?.Theory exploration.Defined the core concept of "life-oriented experiment""life experiment",summarizes the theoretical basis of design life experiment,namely Rousseau's natural education thought,Dewey pragmatism education theory and Tao Xingzhi life education theory,And refined the design principles of life experiments and teaching practice principles.Part ?.Implementation Status.Investigated the implementation of the relevant contents of life-related chemistry teaching in middle school,investigates the interest of students' chemistry experiment,the students are more interested in the content,the students solve the experiment-related problems,the degree of attention to the experimental class and the students concerned about the society and life And the chemical contact of the five aspects of the actual situation,detailed statistics of the survey data and analysis of the various reasons,so as to get in the middle school chemistry in the implementation of the need for life experiments.Part IV.Case Analysis.Designed eight groups of chemistry students in middle school,and designed the students' chemistry experiment from the aspects of principle,preparation,steps,phenomena,conclusions,characteristics and so on.The experiment is interesting and practical,can help students master and consolidate the chemical knowledge,experimental operation,but also to strengthen the professional level of chemical teachers and enhance professional quality.Part V.Teaching Evaluation.Based on the "three dimensions,twelve factors,forty indicators"designed for life experiment evaluation scale,through evaluation scale and data statistics to prove the feasibility and accuracy of the scale,in addition,analyzed the implementation effect of life experiment in chemistry teaching in middle school,and analyzes and analyzes the implementation effect from three aspects:student and teacher interview and evaluation scale.It is concluded that life experiment can prove the implementation of the experiment and the necessity of necessity.Part VI.Conclusion and Reflection.Summarized the research conclusions and reflected the lack of research process.