Comparative Study Of Ionic Reaction In Classroom Teaching With Digital Experiment

The content of "ionic reaction" in the compulsory edition of the PEP edition has its own specific cognitive value.It is a content carrier that guides students to understand the solution from the surface to the essence,and has great significance for the construction of particle concept for students.The microcosmic the content determines that students need to learn from the real situation which teachers have already built,but the traditional classroom teaching does not achieve satisfactory teaching effect.Therefore,based on the function and value of content,the author reanalyzes the difficulties in teaching,and designs a teaching process aimed at improving the development of students’concept.Under the same teaching process,the author carried out the traditional experiment teaching and digital experiment teaching in the two classes with the same level,by comparing classroom teaching with the two kinds of teaching methods,clearing the digital experimental teaching’s effect on the students’ learning effect,thus to clarify the applicability of digital experimental teaching in the teaching of "ionic reaction".On the basis of sorting out literature about the key competency,concept teaching and digital experiment,the paper clearly points out the meaning of the content of ionic reaction and develops teaching designs under different experimental teaching methods.Then carrys on teaching under the two kinds of experimental teaching methods,takes the two section type test system as detection tools to test the students,then deconstructs the value of SOLO classification theory,using the SOLO classification theory to encoding and endowing for testing,and endos data processing and analysis,so then explicits the effect-differences for students in the process of learning the"ion reaction"content under the digital experimental teaching and the traditional experimental teaching,finally proposes research prospects based on drawing the general conclusions.All of the paper includes 5 parts.The main contents are as shown below:The first part is to elaborate the research background and significance of the paper.The second part,reviews the literature of core competency,concept teaching and digital experiments of home and abroad,presenting its research status and research trend,and finding more breakthroughs for paper research based on its deep analysis.In the third part,the paper explicits the purposes,ideas,methods,tasks of the stu dy and the research framework of the paper.Based on the key competency of disc iplines,based on curriculum standards,deeply analyzes the teaching materials,develo-ps related digital experimental cases,and designs the teaching process of "ion react ion" according to the purpose of research.In the fourth part,testing tools are designed and implemented,which includes the design,implementation,data processing of pre-test tools and the post test tools.The emphasis is to encode and endow for the post test detection with the SOLO classification theory,and uses the SPSS software to analyze the data,and makes the related statements based on the data.The fifth part is about the research conclusion and the prospect of the study.The research results shows that:(1)carrys on teaching according to the function and value of the contents that helps to improve the level of awareness of students;(2)two kinds of experimental teaching methods can well achieve for students’ construction for the first period of "ionic reaction";(3)it causes different effects about the construction of the second period "ionic reaction"for students with two kinds of experimental teaching methods;(4)digital experimental teaching has a different effect on different gender students;(5)digital experimental teaching can promote students thinking and solving problem from the perspective of quantitative.According to the conclusion,the author also presents the shortages and prospects of the study.