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一、前言测量估计(估测)是上世纪70年代兴起的研究热点,许多国家的课程标准都规定了估测的教学要求。我国正推行的《全日制义务教育数学课程标准》也新增了相关内容,它明确提出在
I. INTRODUCTION Measurement estimation (estimation) is a research hotspot that started to rise in the 1970s. Curriculum standards in many countries stipulate the teaching requirements for estimation. China is pursuing the “full-time compulsory education mathematics curriculum standards” also added the relevant content, it is clearly proposed in