初中生数感的培养策略  

Strategies of Number Sense Training of Middle School Students

作　　者：李彦峰[1] 曾建国[1] 余宏仁 

机构地区：[1]赣南师范学院,江西赣州341000 [2]广昌一中,江西广昌344900

出　　处：《数学教育学报》2010年第4期81-84,共4页Journal of Mathematics Education

基　　金：江西省教育科学“十一五”规划项目——基于学生基本数学活动经验的教学设计研究(07YB280)

摘　　要：数感在义务教育数学课程中是一个全新的重要内容．目前初中生的数感培养存在的主要问题有：对数概念的理解脱离现实的生活，而且缺少个性化和多样化的理解方式；学生的估算意识薄弱，缺少估算的方法；学生之间缺乏有效的交流，抑制思维的发散；解决问题的能力有待提高．培养学生数感的策略有：在数概念的教学中，重视对数概念的切实体验与理解；注重对运算意义的理解，加强估算能力并鼓励算法多样化；在数学交流中领悟数感；在问题解决中培养和发展数感．In compulsory education mathematics curriculum number sense was a brand new important content, and it was clear to propose training and developing students＇ number sense in every stage in the mathematics curriculum standards. It was important to train and develop students＇ number sense not only in first stage but also in third stage. There were mainly problems in number sense of middle school students at the present time： understanding number concept separated from realistic life and lacked individuation and diversification understand way, estimation consciousness and way was weakness, effectual communion was lack among the students and inhibited diffusion of thought, the capability of solved problem should be improved. On account of these problems, How to adopt the strategies of number sense training？ Here were four aspects： in the teaching of number concept, in the teaching of number manipulation, in the mathematics communion and in the teaching of solving problem processes.

关 键 词：数感 培养 数概念 运算 

分 类 号：G421[文化科学—课程与教学论]