The Research Of Chemical Experiment Based On Micro Distance Technology

Chemistry is a subject based on experiments.The fun,operation and exploration of experiments can help stimulate students' interest in chemistry and deepen their understanding of the knowledge points.In the 17 th edition of the new curriculum standard,the chemistry experiment module and students must do experiments are defined,which indicates that China attaches importance to the role and status of experiment in teaching in the reform of chemistry curriculum.However,at present,the new curriculum standard is still in use with the 'old' teaching materials,which are not updated in time,and the experimental contents,instruments and methods are old.There will be some problems in the implementation of chemical experiments,such as: some remote areas of the school facilities are not perfect,students have no opportunity to do experiments;Chemical reactions are of various types and may produce toxic and harmful substances during operation.The experiment was not carried out smoothly due to such factors as long reaction time,low yield,inconspicuous phenomenon,tight schoolwork and heavy task in high school.Through the investigation of the current situation of the experiment and the analysis of the macro technology,the research content of this paper is determined: based on the macro photography technology and combined with a specific experimental method to "re-study" the chemistry experiment in the middle school.By constantly improving the content,method and presentation effect of chemical macro experiment,and applying the research results into teaching practice,it can be seen that the application of chemical macro experiment has improved students' learning interest,attitude and knowledge grasp by analyzing the changes of students' grades and learning situation before and after the implementation.It can be seen that the design and implementation of chemical macro experiment has a positive effect on teaching.Through the further study of macro experiment,we hope to provide new methods for experiment operation,enrich the content of teaching materials and provide new materials for teaching.The research contents of this paper are as follows:The first part: combined with the core accomplishment of chemistry in the 17 th edition of the new curriculum reform and the current implementation status of the middle school experiment,the research content,method,purpose and significance of this paper are determined.The second part: analyzes the existing research and implementation status of macro technology at home and abroad,defines the core concepts such as "macro","macro photography" and "macro experiment" studied in this paper,and constructs the theoretical system of macro chemistry experiment.The third part: sorting and analyzing the experiments in the chemistry teaching materials,classifying them according to the experiment contents,experimental phenomena and reaction conditions,screening them according to the amount of drugs,experimental instruments and presentation effects,and determining the research contents of the chemical macro experiment and the animation production of the macro experiment.The fourth part: according to the chemistry macro experiment research content carries on the teaching design,and applies in the practice teaching.The practice effect was evaluated by means of questionnaire survey and score statistics,and the chemical macro experiment was improved according to the data statistics of experimental cases and the problems in the implementation process.The fifth part: research conclusion,reflection and prospect.This paper summarizes the conclusions obtained in the research process,analyzes the function and deficiency of chemical macro experiment,and forecasts the macro experiment.