Investigation And Research On Status Quo Of High School Students' Biological Subject Problem Representation

The solution of the problem of biology subject not only requires a perfect cognitive structure,but also needs to constantly reflect on the process of problem solving,discover the types of problems and their laws,and generalize the general thinking mode of problem representation thinking.In order to determine the problems existing in the problem solving process,so that teachers can improve the students' ability to solve problems through targeted teaching.This study is based on the literature method,according to the general thinking mode of problem representation thinking,it analyses the state of high school students' problem-solving thinking and propose corresponding teaching strategies,aiming at cultivating students' independent problem thinking ability.Based on the general thinking mode of problem representation,this study firstly understands the status quo of problem solving at home and abroad through literature research methods,and discusses the related theories of problem representation.Secondly,taking two questions as an example,the students of different types of schools are carried out.Questionnaire survey of subject matter representation,based on the results of the problem representation survey and oral report,analyze the problems existing in the problem solving process;finally,based on the survey results to analyze the existing problems,put forward the teaching suggestions on the problem solving ability training.The research results show that the common problems in the problem solving process of the two types of school students are,failing to extract strong constraints by heuristic search,the key information to solve the problem;reverse reasoning is a common weak link;fail to summarize the problem General conditional strategy to solve.Therefore,teachers can cultivate students' problem-solving ability in the following aspects: teaching demonstration,cultivating meta-cognitive ability;paying attention to prompts,guiding key information of problem finding;sample teaching,realizing knowledge transfer;reasoning training,strengthening problem splitting ability.