Research On Training Strategies Of Junior Middle School Students' Mathematical Modeling Literacy

“General High School Mathematics Curriculum Standers(2017 Edition)” has promoted mathematical modeling to a core quality in mathematics.Mathematical Modeling Literacy is to “analyze practical problems with mathematical thinking,describe practical problems with mathematical language and solve practical problems with mathematical tools”.This study aims at exploring strategies to develop junior high school students' mathematical modeling literacy.Based on the literature review on mathematical modeling literacy,this study explores the connotation of mathematical modeling literacy.This study not only clarifies the concept and elements of mathematical modeling literacy,but also analyses the detailed process of mathematical modeling and optimizes the evaluation scheme of mathematical modeling literacy.By adopting the methods of questionnaires and interviews,the study aims to find out the influence factors on cultivating students' mathematical modeling literacy from the level of teachers.In order to investigate teachers' understanding of the mathematical modeling literacy,questionnaires are designed according to the following four dimensions: the concept of mathematical modeling literacy,its elements,the evaluation methods and the process of mathematical modeling.And the interviews involve two aspects.First,how to teach the characteristic columns of mathematical modeling in textbooks.Second,how to cultivate students' modeling literacy in new courses,exercise classes and activity classes.The results show that teachers have insufficient understanding on the ability of mathematical modeling,the process of mathematical modeling and the evaluation methods of mathematical modeling literacy,while novice teachers' understanding of mathematical modeling literacy is more accurate than that of old teachers.Offering mathematical modeling courses can improve teachers' mathematical modeling literacy,while there is only a small number of teachers who systematically offer mathematical modeling courses.Teachers do not make full use of the materials of mathematical modeling provided by textbooks.They only teach mathematical modeling courses in a single way.Students lack interest and life experience in mathematical modeling and their learning orientation is merely scores.This phenomenon is the obstacle to students' development of mathematical modeling literacy.Furthermore,this study explores the influencing factors on the development of mathematical modeling literacy from the student level.On the basis of the evaluation rules,questions are designed to test the mathematical modeling literacy of junior high school students.The survey draws the following conclusions: traditional test papers restrict students' thinking so that students misunderstand the evaluation rules of mathematical modeling literacy and hold a negative attitude towards mathematical modeling.Moreover,students lack the consciousness of symbols and self-monitoring and their reading comprehension and mathematic ability need to be improved.In view of the influencing factors,this study proposes effective strategies to cultivate junior high school students' mathematical modeling literacy.First,teachers understand the connotation of mathematical modeling literacy,learn and develop mathematical modeling courses to deepen their understanding of mathematical modeling literacy.Second,teachers follow the principle of matching teaching mode with modeling content to enrich the teaching mode of mathematical modeling course.Third,teachers should adopt the teaching process of cognitive model---Discovery Model---Practice Model to enrich students' knowledge of mathematical modeling.Fourth,teachers can enhance students' ability of mathematical modeling by cultivating their reading comprehension ability and lateral mathematic ability,strengthening their consciousness of symbols and self-monitoring.Fifth,teachers clarify evaluation rules in order to correct students' inherent evaluation views and last,teachers stimulate students' interest in modeling and refine students' persistent mathematical quality to change their attitudes towards mathematical modeling.