论文部分内容阅读
在估算教学实践中,一些主客观因素制约了学生的估算能力发展,教学中可以从凸显价值、前瞻引领,创设情境、直抵内核,策略导向、循序渐进,分类指导、有的放矢和整体关照、螺旋上升五个层面入手,打破制约瓶颈,让估算教学真正发生,让估算能力成为学生的重要数学素养之一。
In the estimation of teaching practice, some subjective and objective factors have restricted the development of students’ ability to estimate. The teaching can range from highlighting value, looking ahead, creating situations, reaching the core, strategy orientation, gradual and orderly guidance, targeted orientation and overall consideration. One level to start, to break the bottleneck constraints, so that the estimation of teaching really happen, so that the ability to estimate one of the important mathematical qualities of students.