磨·模·魔——小学数学教学中渗透模型思想的思考

《全日制义务教育数学课程标准(实验稿)》明确提出,在数学教学中应当引导学生感悟建模过程,发展"模型思想"。在小学,进行数学建模教学具有鲜明的阶段性、初始性特征,即要从学生熟悉的生活和已有的经验出发,引导他们经历将实际问题初步抽象成数学模型并进行解释与运用的过程,进而对数学和数学学习获得更加深刻的理解。就其教学实施的一般程序而言,教师先行琢磨、通过教学不断建模、学生在体验和感悟中为之着魔是小学数学建模教学的关键所在。

Grinding,Modelling and Magic

Mathematics Curriculum Standards for Full-time Compulsory Education is under revision,which puts forward clearly in mathematics teaching that students should be guided to experience modelling process,and develop"model thinking".The teaching of mathematical modelling bears the distinctive characteristics of stages and initialization in primary schools,which requires teachers to lead the students to create mathematical modelling by Abstracting the practical problems and to interpret and use the modelling based on their familiar life and experience,through which they can gain further and deeper understanding of mathematics and mathematics studying.As far as the common teaching procedure is concerned,teachers should build mathematical modelling through teaching after careful thinking,while the students will be intoxicated during experiencing and sensing,which is the key point of the teaching of primary mathematical modelling.