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估算是指计算、测量时无法进行精确计算或测量时所采用的一种数学方法,它也是学生计算能力所培养的一门数学掌握技术。一、算术检验巧估算我们在教学中,老师想要多方面培养学生的估算能力,达到学生才能从“不愿估算”到“喜欢估算”的转变。比如:学生动手计算3.2乘以2.6,有些学生在第一次计算时,学生总会把小数当成整数来进行计算,在进行这种教
Estimation refers to the calculation, measurement can not be accurately calculated or measured by a mathematical method used, it is also a student of computational ability to master a mathematical mastery. First, the arithmetic test clever estimation of our teaching, the teacher wants to develop students’ estimation ability in many ways, to achieve the students can change from “reluctant to estimate ” to “like estimation ”. For example: Students multiply by 2.6 3.2, some students in the first calculation, the students always regard the decimal as an integer to be calculated, during this teaching