Application Research Of PBL Teaching Methods On Chemistry Teaching Of High School

The educational and cultural ideas of ethnic areas have their own uniqueness.There are great differences in the customs,cultural environment and educational tradition of various ethnic regions.Therefore,education based on the characteristics of the ethnic groups is conducive to better understanding and mastering the knowledge of the students.Problem-based learning(PBL)is a teaching method based on student orientation,problem orientation and students' learning by asking questions and solving problems.On the basis of the investigation and Research on the concept and application of “PBL” teaching method at home and abroad,this paper discusses the problem of “problem type”(PBL)teaching in the chemistry teaching of Mongolian teaching high school with the actual cases with Mongolian characteristics to improve the teaching effect,and the following research is made.Study the results.First,the teachers and students in the educational practice school are interviewed and questionnaires are conducted to understand the present situation of the chemistry teaching in the high school of Mongolian language,the recognition of the “PBL” teaching method and the attitude of the teaching method,and on the basis of the questionnaire,it combines the Mongolian culture and the Mongolian life characteristics.A practical case of “problematic” teaching based on Mongolian characteristics is presented.The actual cases of “problematic” teaching are made up of four major parts,such as the actual cases of “experimental operation” based on Mongolian life characteristics,the cases of “metal and metal compounds”,the actual cases of “non metal compounds” and the actual cases of“organic compounds”,including 13 cases.Secondly,we choose the experimental operation of filtration and evaporation,the properties of sodium bicarbonate and the properties of ethanol,and practice in theteaching process of “the purification of crude salt”,the teaching process of “the important compounds of sodium” and the teaching process of“two kinds of common machines in life” in the course of teaching.The“problem type” teaching method.In the end,through interviews,questionnaires and tests of teachers and students,the practical effects of the “problem-based” teaching method based on the Mongolian characteristics in chemistry teaching are discussed.It is known that it is very good to use the actual cases based on Mongolian characteristics in the course of chemistry teaching to carry out “problem type” teaching.Stimulate students' interest in learning,and cultivate students' ability of independent thinking,solving practical problems,communicating and expressing abilities,and improving teaching quality.