Establishment And Assessment Of Evaluation Indicators For High School Students' Biological Concept Representation

Biological concept presentation refers to the method of recording and presenting biological concepts in the mind.Students' representational level of related biological concepts limits their understanding and application of biological knowledge.At present,most research on the level of concept representation mainly focus on two disciplines:mathematics and chemistry.In addition,the speed,depth and truth of representation are used as evaluation indicators in these studies.What's more,there has been no systematic theoretical system in the presentation of biological concepts.Therefore,this project aims to analyze the representational level of biological concept of high school students,and then come to specific evaluation indicators at each level.Besides,it also intends to form and establish a more scientific and reasonable evaluation indicator system for high school students,which provides an effective assessment tool for high school students' assessment of representational level of biological concepts.This project mainly includes the following two parts:First,based on the related research results of literature analysis,it proposes four representational levels of biological concepts and eight specific evaluation indicators,which originates from a series of characteristics of biological concepts.Furthermore,the relative weights of various levels and evaluation indicators are also allocated,and then it establishes an evaluation indicator system of biological concept representation for high school students,by conducting a survey of experts' opinions.Second,based on the evaluation indicators established in this study,two questionnaires are designed to test and evaluate the reliability and validity of evaluation indicators.The results show that the questionnaire designed based on the evaluation indicators in this project has good internal consistency reliability,content validity and differentiation.It suggests that the application of this indicator system can indeed provide a scientific,reasonable,and operable evaluation program for high school students' biological concept representation.