| In the new edition of the "Mathematics Curriculum Standards for Compulsory Education",it is pointed out: "In the course of synthesis and practice,it is necessary to integrate mathematics knowledge with knowledge of other disciplines,complete interdisciplinary practice activities,and understand the relationship between mathematics and life,mathematics and other disciplines." The "synthesis and practice" of mathematics in junior high school is the key content of the mathematics curriculum reform.Compared with the other three major fields,the current research is less in number,and there is a lack of in-depth theoretical research and systematic practical research on teaching,which makes the research conclusion and teaching practice.There are divisions.On the basis of the literature research,the research on the teaching status of "synthesis and practice" of mathematics in junior high school was carried out by means of questionnaire survey and interview.Analyze and organize survey results.Combined with the survey results,based on the PBL teaching method,a teaching model of "synthesis and practice" of junior high school mathematics is constructed.Finally,this teaching model is used to carry out research on teaching practice and combined with questionnaires to conduct research and analysis to verify the effectiveness of the teaching model,so as to facilitate front-line teaching.Provide practical and effective procedural teaching reference.The main contents and conclusions of the research are:First,through the current situation survey,it is found that in actual teaching,the degree of recognition of the importance of mathematics synthesis and practice in junior high school is relatively high,but the degree of recognition of the essential value is relatively low.Moreover,the teaching content mostly stays within the scope of textbooks,and at the same time,the implementation of the curriculum is limited due to the pressure of further studies,school support,and limited resources.In terms of specific teaching implementation,the teaching method is relatively simple,and the selection of teaching content is limited,so that the original design of the "synthesis and practice" part is not well reflected in practice,and the teaching evaluation does not highlight the dominant position of students.Second,combined with the problems in the current teaching situation,combined with the requirements of the "synthesis and practice" part of the new version of the curriculum standards and the analysis and research of a large number of documents,from five aspects: theoretical basis,implementation conditions,teaching objectives,operating procedures and teaching evaluation.The construction of a comprehensive and practical teaching mode of mathematics in junior high school based on PBL provides support for specific practice in teaching.Third,the teaching design is carried out according to the constructed teaching mode,and the actual junior high school classroom teaching test is carried out.Through the collection and analysis of the experimental data,it is confirmed that the PBL teaching mode can effectively improve the students’ comprehensive ability,especially in the students’ group cooperation ability,The growth of problem-solving ability and practical ability. |