| Model thinking is a basic mathematical thinking and new core literacy,which was added to the curriculum standard in the curriculum reform in 2011.Nowadays,mathematical models have been widely used in the rapidly developing society,so the cultivation of mathematical model ideas has also received more and more attention.Mathematical model thinking has two basic characteristics of practicability and practicality,which can concretize and formulate abstract problems so as to solve problems in real life.Therefore,the comprehensive penetration of model thinking into primary school students from the primary stage is of great significance for students to learn mathematical modeling,train mathematical and logical thinking,and develop their abilities in all aspects.Equation model is the most typical mathematical model in elementary school.Therefore,the relevant content of "Simple Equation" unit is selected as the teaching content for in-depth research.First of all,by looking up a large number of documents and materials to understand and analyze the mathematical model ideas and related theories of equation teaching,making them the theoretical basis to support subsequent investigations and research.Then,taking the fifth grade students and front-line math teachers as the research objects,the current situation of students’ equation learning is investigated through the questionnaire survey method,and the current teaching situation of simple equations in primary schools is understood through the interview method.The analysis of the content constitutes the pre-analysis of instructional design.Based on the previous analysis,the study designed a teaching plan based on the idea of mathematical model for the "Simple Equation" unit,including the design of teaching objectives,content,process and evaluation.After the implementation of the teaching plan,the teaching effect was analyzed through classroom observation and teaching post-test.It was found that the teaching practice has achieved positive results,which can make the classroom teaching effect better,promote the development of students’ mathematical model thinking,and feel the effect of the equation.value etc.Finally,through the reflection of the whole teaching design and classroom teaching,it is suggested that the primary school mathematics teaching design based on the mathematical model thinking should gradually penetrate the model thinking in combination with the characteristics of students’ age;in the classroom teaching,students can perceive the model thinking;Day-to-day teaching is closely linked;designing and organizing practical activities to improve students’ modeling ability. |