| The extraction of chemical key competency elements is the most important problem in the field of chemical key competency research.This study from the PISA assessment and chemical scientific literacy core literacy assessment,build the key ability of high school chemistry analysis framework,analytical chemistry textbooks concrete columns content,classifies the practical problems in textbooks,and prepare the key ability of chemical examination questions,measured on the basis of thinking aloud,and qualitative analysis of the object of study the problem solving behavior,key ability to extract chemical elements.First,combing with the review and the PISA assessment and chemical scientific literacy core literacy assessment of relevant literature,in order to determine the key ability of chemical analysis framework,guided by the analysis framework analysis Lu Ke version of the new high school chemistry compulsory teaching material content,practical problems involved in integration of classified text types and the types of chemical knowledge covered by the real situation,Finally,16 types of chemical problems were obtained,and 6 of them were selected as typical types of chemical problems according to the characteristics of different types of chemical problems.Then,based on the characteristics of these 6 types of typical chemical problems,and combined with the framework of chemical key ability analysis,the examination questions of high school chemistry key ability were compiled.In reference to the opinions of experts and a line of high school chemistry teacher related on the basis of the final formation of reasonable and effective key ability of high school chemistry test paper,and then use the survey questions to 6 in a key middle school students in shandong province was measured,by thinking aloud for students’ problem solving recording material,and its transcription for the transcript,students in reading,on the basis of the problem solving process,Finally,the key elements of chemistry ability are extracted by analyzing students’ problem-solving behavior.The results show that :(1)chemical key competence is a system of competence composed of multiple competence elements;(2)Various key competence elements have different typical external behavior characteristics;(3)Experimental inquiry ability is a kind of comprehensive ability which contains various ability elements.Innovative points of the study :(1)extracting key competence elements of chemistry,providing a new theoretical basis for the future research on key competence of chemistry;(2)Determine the analytical framework of chemical key competencies,providing a new method for evaluating chemical key competencies in the future;(3)It provides a new tool with practical value for the assessment of chemical key competence by compiling test questions of chemical key competence... |
