Elementary school mathematical model concept based on the Rasch model Assessment research
基于 Rasch 模型的初中数学模型观念的测评研究

摘要

随着核心素养教育理念的推进，数学建模能力成为初中数学教育的重要目标。本研究以Rasch模型为理论框架，构建初中数学模型观念评价指标体系，编制测试工具，并对某市某中学初二学生进行实证分析。研究发现：学生模型观念整体水平较好，但运用能力较弱；中等水平学生占比较高；测试卷信度与区分度符合测量要求。基于此，提出强化建模教学目标、分层教学、增加实践应用等教学建议，为数学核心素养培养提供参考。

Abstract

With the advancement of the concept of core literacy education, mathematical modeling ability has become an important goal of junior high school mathematics education. Based on the Rasch model as a theoretical framework, this study constructed an evaluation index system of junior high school mathematical model concepts, compiled test tools, and conducted an empirical analysis on the second year junior high school students in Changzhou City. The results show that the overall level of students' model concept is good, but the application ability is weak. The proportion of students with intermediate level is relatively high; The reliability and discrimination of the test volume met the measurement requirements. Based on this, some teaching suggestions are put forward, such as strengthening the teaching objectives of modeling, hierarchical teaching, and increasing practical application, so as to provide reference for the cultivation of mathematics core literacy.