低年级学生数感培养的实践与思考

Practice and Thinking on the Cultivation of Junior Students'Sense of Number

《义务教育数学课程标准(2011版)》提出了十个核心词,“数感”是其中一个,且位列第一,是教师在备课、研课、评课时常用的关键词。关于数感及学生数感的培养,许多专家、学者、一线教师已有了丰硕的理论及实践研究结果。相比之下,小学低年级的研究较之中高年级则单薄得多。然而数感作为一种自觉的行为,更应该从学生起步阶段加以培养,应渗透到数学学习的整个过程。

The"Compulsory Education Mathematics Curriculum Standard(2011 Edition)"puts forward ten core words."Number sense"is one of them and ranks first.It is a key word commonly used by teachers when preparing,studying,and evaluating lessons.Regarding the number sense and the cultivation of students'number sense,many experts,scholars,and frontline teachers have obtained fruitful theoretical and practical research results.In contrast,research in the lower grades of elementary school is much thinner than that in the middle and upper grades.However,as a conscious behavior,number sense should be cultivated from the beginning stage of students,and should penetrate into the whole process of mathematics learning.