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对数感及其教学的思考
引用本文:史宁中,吕世虎.对数感及其教学的思考[J].数学教育学报,2006,15(2):9-11.
作者姓名:史宁中  吕世虎
作者单位:1. 东北师范大学,吉林,长春,130024
2. 东北师范大学,吉林,长春,130024;西北师范大学,教育学院,甘肃,兰州,730070
基金项目:全国高等教育科学规划项目
摘    要:《义务教育数学课程标准》中使用了“数感”这一概念,一些学者对数感的含义作了探讨,认为数感是“感知”、“观念”、“知识,,等.其实,“数感”是对数的感悟,既有感知的成分又有思维的成分.数感发展的关键期是低学段.数感的教学需要实际背景的支持,需要学生亲身经历和实践.数感的培养需要直观经验与理性思考的有机结合.

关 键 词:数感  教学  运算
文章编号:1004-9894(2006)02-0009-03
收稿时间:2006-02-23
修稿时间:2006-02-23

Thinking on the Number Sense and It's Teaching
SHI Ning-zhong,LV Shi-hu.Thinking on the Number Sense and It''''s Teaching[J].Journal of Mathematics Education,2006,15(2):9-11.
Authors:SHI Ning-zhong  LV Shi-hu
Institution:1. Northeast Normal University, Jilin-Changchun 130024, China; 2. Education College, Northwest Normal University, Gansu Lanzhou 730070, China
Abstract:By analyzing the discussion about number sense done by some researchers,the authors thought: number sense,that had be used in Full-time Obligatory Education Mathematics Curriculum Standards(Experimental Version),should include not only sense perception but also thinking;the key time of developing of number sense was first stage of schooling;the teaching of number sense should be associated with realistic materials and concrete situations,and needed students themselves experience and practice.The developing of number sense needed to combine object experience with reason thinking.
Keywords:number sense  teaching  ooeration
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