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新课程标准中“重视口算,加强估算,鼓励算法多样化”的内容,在小学数学教学中,越来越得到重视。新课程把估算内容穿插在各年级各阶段的学习中,尤其是乘、除法运算中更显得突出,估算优势作用明显较大,与估算有关的内容较多。
In the new curriculum standard, “emphasize port count, strengthen estimation, encourage algorithm diversification ” content, in primary mathematics teaching, more and more attention. The new curriculum intersperse the contents of the estimation in all stages of learning in all grades, especially in multiplication and division, which is more prominent. The estimation of the superiority is obviously larger and the content related to the estimation is more.