The Diagnosis Of The Thought Disorders Of The Junior High School Students With Chemical Learning Difficulties In Solving Problems About "The Law Of Mass Conservation"

The conservation of mass law is the key content of junior chemistry course,so solving the related problems is of great significance for chemistry learners.When students with learning difficulties meet the conservation of mass law,they often feel confused and difficult to break through.In this paper,research approaches that I adopt whether document study law and case study law,so as to detect the thought disorders of the poor students.The process will be divided into four different stages:understanding and characterizing the problem,seeking ideas,tying to answer the question and evaluating the results.The types of thought disorders that will appear in the four stages are lack of superficial information disorder,hidden information deficiency disorder,understanding one-sided disorder,improper selection of law disorder,weak execution disorder,not clear disorder,and monitoring and reflection disorder,a total of 7 class.In this study,fifteen students from QinDuanKou middle school of WuHan were chooses as the research members.Examination is an important tache in the whole research process.I summarized the problem of conservation of mass law questions,carefully selected 15 topics to form test volume and ask each student to tell and utter the detailed ideals of each question,then analyzing the types of disorders according to their performances.By this way,I get the personal files,date analysis and characteristics analysis of each poor student.The statistics are as follows:1.The mistakes are not necessarily proportional to the thought disorders;2.Different thought disorders may occur at the same time or in order when solving problems;3.Some problems can have common thought disorders;4.Some of the poor students have their own characteristics,and will be more prominent in different types of disorders;5.Over all,the order from high to low of the thought disorders is lack of superficial information disorder,hidden information deficiency disorder,improper selection disorder,monitoring and reflection disorder,understanding one-side disorder,weak execution disorder and lack of clarity disorder.Analysis of the causes of these thought disorders are:1.Cognitive defect;2.Mind-set interference;3.The "macro-symbol-micro" triple representation does not transform;4.Poor analytical capability;5.The examination is not careful;6.The monitoring is weak;7.The psychological suggestion is negative.The teaching strategies to eliminate this thought disorders are:1.Improve the thinking dimension training consciousness;2.Filling thinking loophole timely;3.Set up confidence;4.The examination process should be clear;5.Pay attention to the mode of thinking of chemical science and methods of training;6.Strengthen the variable training;7.Cultivate good grass draft and writing habits;8.Give more time to let students speak;9.Strength monitoring reflection consciousness;10.Record the anti-field results timely.The innovation point of the research are:1.focusing on the solution to the problem of law of mass conservation;2.focusing on the chemical poor students and making a case study.