A Study On The Content Analysis And Teaching Strategies Research About "Problem Solving" In Elementary Mathematics Of PEP Edition

This paper studies the problem solving of number operation in PEP primary mathematics textbook.That is,in the number operation part,with orange as the background color,and clearly write the solution three steps:reading and comprehension or what in the picture and what you know,analysis and solution or how to solve,review and reflection or the answer is right.Outside this range is not included in this study.In the research methods,this paper uses literature research and text analysis.First,clarifying the meaning,material arrangement,presentation mode,problem difficulty,problem-solving methods,teaching goals,teaching methods of "problem solving" and "application problem" by collecting and organizing of literature.Second,drawing on the comprehensive difficulty model of mathematics problems created by Professor Bao Jiansheng,learning from the improvement of Li Shuwen and Huang Lihong,combining with the elementary school mathematics "problem solving",The "problem solving" is divided into integer "problem solving",the decimal "problem solving",the score "problem solving" and the percentage "problem solving".Analysis of its difficulty,thus available:at the level of exploratory factors,the number of integers,scores,decimals,and percentages are increased sequentially.At the background factor,the percentage of background factors is slightly higher,and the backgrounds of the decimal,integer and fraction are not very different.At the level of the operational factor,the integer,the fraction,the fraction,the percentage are incremented,and the integer is lower than the other three.At the level of reasoning factors,basically flat,basically at the level of reasoning.At the level of factors knowledge content,fraction,integer,decimal and decimal percentage are increasing,the percentage of flat,fraction,decimal and integer less than the percentage.In general,the percentage and decimal solve the problem is relatively large,difficult to solve the integer problem is relatively low.It is clear that the "problem solving" reflects the importance of quantitative relations,method diversity,reflection ideas and the importance of the evaluation of the curriculum standards and the value orientation embodied in the "problem solving" in the textbook.Finally,the integration of the above "problemsolving" difficulty analysis and value orientation research,summed up the following "problem-solving" teaching recommendations:grasp the difficulty,and gradually resolve the teaching difficulties;situational teaching,close to the reality of life;focus on the process,to guide students to orderly thinking;a variety of methods,attention to quantitative relationship analysis;cooperation and communication,enhance awareness of the problem;reflect the integration,deepen the understanding of the problem.