新课标视野下的量感及其培养

Sense of Quantity and Its Cultivation Under New Curriculum Standards

《义务教育数学课程标准(2022年版)》明确提出“量感”,要求学生能够直观感知物体的可测量属性以及大小关系,养成用定量的方法认识和解决问题的习惯。研究通过解析“量”的两个读音,阐释了“度量”“度量单位”的含义。新课标视野下的量感,主要表现为学生理解度量及度量单位;能够合理选择度量单位,实现单位的灵活换算;感受度量的误差,学会合理估计度量的结果。在教学中,教师要渗透度量的历史,引导学生在测量活动中经历直观感知、获得量感,利用多维度空间发展学生的量感。

Compulsory Education Curriculum Standards:Mathematics(2022 Edition)puts forwards the concept of sense of quantity which requires students to perceive the measurable properties and size relationships of objects and develop the habit of using quantitative methods to analyze and solve problems.On the basis of analyzing the two pronunciation of quantity,we can clarify the meaning of measure and measurement unit.Sense of quantity under new curriculum standards means students can understand measurement and its unit,choose measurement unit and realize conversion of units and feel the deviation of measurement and learn to estimate measurement.In teaching,teachers should elaborate on the history of measurement and lead students to gain sense of quantity in measurement activities and use multi-dimensional space to develop students'sense of quantity.