Research On The Deficiency And Improvement Of High School Biology Experiment Teaching Effect

Biology,as a natural subject dominated by experiments,is mainly composed of biological experiments.The understanding of the biological concept and the verification of the theory are also inseparable from the experiment.It can be seen that biological experiments play a very important role in the field of biology,and also play a great role in promoting the study of biology.With the development of biology core accomplishment in recent years,social and educational circles pay more attention to the cultivation of students’ scientific thinking,and these are inseparable from biological experiments.In education practice,it was found that due to the limitation of experimental equipment and experimental equipment and the relative tension of class time,cause more and more teachers to practice experiment to speak.Found in the process of experiments,some experiments of the proposed experiment material is difficult to obtain,some experiments of operation costs for a long time,some experiments of experimental phenomenon is not obvious,some experiments of operation process is not satisfactory.Therefore,in order to improve teachers’relevant teaching skills,and to strengthen students’ interest in learning,further enhance students’ scientific thinking ability and practical operation ability.It is necessary to improve the existing biological experiments.Analysis,biology related documents in the process of carding the experimental type,on the basis of predecessors’ research combining with the characteristics of biology teaching for high schools are written,the biology experiment is divided into four categories:modeling experiment,the verification experiment,the zetetic experiment,investigation report.Then,according to the four experimental types,the experiments in the biology teaching materials of human education edition were sorted out,and the biological concepts related to each experiment and the cultivation of students’ abilities were analyzed.Through practice for half a year’s education found that part of the biology experiment,some deficiencies,to formulate a questionnaire about a number of first-line biology teachers,and combined with the results of questionnaire survey,part experiment on biology textbooks for high schools are exist the problem of insufficient to provide relevant Suggestions for improvement.The improvement is carried out mainly from three aspects:experimental materials,experimental apparatus and experimental operation.At the same time,the application of experimental principle in life is extended.It aims to give students the purpose of the textbooks of theoretical knowledge with real life actually want to contact,will promote students use of existing knowledge and experience to solve the problems existing in the real life.Select one from each of the types of experimental experiment,aiming at the shortcomings of the the experiment to improve implementation,prior to the implementation,according to the requirements of《General high school biology curriculum standard》formulated the related experiment scheme,and then respectively,the implementation of teaching material of the original experiment and the improved experiment,the experiment process of two experiments and takes effect.According to the comparison,the experimental scheme was improved and improved,and the best solution was obtained.Late in order to make improvements in biology experiment teaching experiment better application,the author also for the implementation of the improvement of the preparation of the relevant evaluation questionnaire,for subsequent teaching evaluation considerations must be prepared.In the course of this study,the following conclusions are obtained:(1)promote the improvement of teachers’ professional knowledge;(2)promote the development of teacher biology professional skills;(3)stimulate students’ interest in biology.