Research On Geometric Visual Literacy Assessment Model Of Junior High School Students

Geometric intuitive literacy is to train students to describe and analyze problems with figures and tables,and to emphasize the cultivation of students’consciousness and habits.Based on the principles of integrity,consistency and stage,the study aims to cultivate students’geometric intuitive literacy and lay a solid foundation for students’learning of mathematical geometric intuitive knowledge.First of all,reading and literature collation are conducted from the perspectives of geometric intuitive concept,geometric intuitive form,geometric intuitive content,geometric intuitive cognition level and mathematical literacy assessment model.After classifying and sorting out its contents,it is found that there is no detailed model exploration and assessment framework for the assessment of geometric and intuitive literacy in junior middle school.Secondly,the research mainly focuses on the assessment framework of junior high school students’geometric intuitive literacy,the construction of junior high school students’geometric intuitive literacy index,the construction of junior high school students’geometric intuitive literacy model,and the test of junior high school students’geometric intuitive literacy assessment model.In this process,the main objects of the research are front-line junior high school mathematics teachers,mathematics education research experts,junior high school students in different regions,etc.The research tools include interview outline,questionnaire,test paper,etc.,among which questionnaires and test papers have good reliability and validity after testing.（1）Assessment framework of geometric intuitive literacy of junior high school students:First,interviews were conducted with 5 experts in mathematics education direction,interviews and dialogues were sorted out,and the assessment framework of geometric intuitive literacy of junior high school students was preliminarily determined.（2）Construction of geometric and intuitive literacy indicators for junior high school students:Based on the interview results and the sorted reference content,the evaluation index system of geometric and intuitive literacy for junior high school students is preliminarily constructed.Experts delete,modify and confirm the indicators,and determine the evaluation index of geometric and intuitive literacy for junior high school students.The index includes 4 first-level indicators,and each first-level indicator contains 6 second-level indicators.（3）Construction of geometric and intuitive literacy model for junior middle school students:The obtained geometric and intuitive literacy evaluation indicators of junior middle school students are compiled into a questionnaire,and the recognition degree of the indicators of first-line junior middle school mathematics teachers and mathematics education teaching researchers is extensively investigated.The hypothesis of the model was put forward by using Data Analysis Plain analysis method,and the structural equation was analyzed by using AMOS26.0 software to obtain the structural equation model of the geometric intuitive literacy of junior middle school students.（4）Test of geometric and intuitive literacy assessment model for junior high school students:Prepare test papers for various indicators in the geometric and intuitive literacy assessment model for junior high school students.Experts check and inspect the test papers,issue papers to test students,verify the results of the test papers and verify the accuracy of the model.Finally,according to the research,the geometric intuitive literacy assessment model of junior high school students can be expressed as:γ=0.24x+0.25y+0.27z+0.24m,Among them,x=0.13x₁+0.17x₂+0.16x₃+0.18x₄+0.18x₅+0.18x₆,y=0.17y₁+0.17y₂+0.16y₃+0.16y₄+0.17y₅+0.17y₆,z=0.17z₁+0.17z₂+0.17z₃+0.16z₄+0.17z₅+0.16z₆,m=0.17m₁+0.17m₂+0.16m₃+0.16m₄+0.17m₅+0.17m₆.Where,γrefers to"junior high school students geometric intuitive literacy",x refers to"perception of graphics,classification";y is for"draw the figure,analyze the property";z is for"connecting’numbers’and’shapes’to build models";m stands for"analyze a situation,solve a problem".In the process of junior middle school mathematics teaching,students’geometric intuitive literacy has been improved.Geometric visual literacy requires teachers to guide students and intervene in the teaching process to promote the comprehensive development of students’geometric visual literacy.