Diagnosis And Correction Of Situational Chemical Problem Solving Obstacles For Junior High School Students

The cultivation of discipline core literacy is a hot topic in the current basic education research,and one of the main goals of basic education is to improve students' problem-solving ability.In the implementation of junior high school chemistry curriculum in compulsory education,more and more attention is paid to cultivating students' ability to solve chemical problems,especially to develop students' ability to solve chemical problems in real situations.In teaching practice,it is found that students' ability to solve situational chemistry problems is relatively weak.This study explores and analyzes the obstacles and their causes in solving situational chemistry problems among junior high school students.To understand the present situation and influencing factors of junior high school students' ability to solve situational chemistry problems,and propose The teaching strategies of improving junior high school students' ability to solve situational chemistry problems are put forward in order to provide reference for junior high school chemistry teaching.This study is mainly carried out from the following aspects:(1)through a large number of literature review,the domestic chemical problem solving research status and problem solving related theories are combed,and the process and characteristics of situational chemical problem solving are analyzed.According to the theoretical analysis and chemistry teaching practice,we compile the "Junior Middle School students' situational Chemistry problem solving obstacle Test Paper".In April,the students who just finished the first model test of junior high school were taken as the subjects.(3)make use of SPSS2.0 software to statistics and analyze the test volume data,and combine with the test volume to solve the problem of situational chemistry.(3)using SPSS2.0 software to analyze the data of the test volume.Case interviews and other methods,summed up the junior high school students in solving situational chemistry problems in the types of obstacles.(4)according to junior high school students to solve situational chemistry problems test and analysis results,Some teaching suggestions are given to improve the situational chemistry problem solving ability of junior high school students.The results show that the obstacles to solving situational chemistry problems of junior high school students are information acquisition and processing obstacles,obstacles to extracting existing knowledge,lack of thinking on subject characteristics,weak metacognitive monitoring barriers and obstacles of fear of emotion,etc.Among them,information acquisition and processing obstacle and obstacle of fear of difficulty emotion are the most prominent.Its causes are various,but ignoring situational problem solving teaching is one of the important reasons.Therefore,this paper puts forward that the junior high school chemistry teaching should:let the students study chemistry in the situation,let the students study chemistry in the problem-solving,improve the students' ability of information processing and metacognition monitoring,pay attention to the students.Courage,self-confidence and other non-intellectual factors.