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１．认数与计算相结合、穿插教学，使学生逐步形成数概念，达到计算熟练。数和计算的知识是人们在长期的生产实践中逐步发展起来的，是紧密联系着的。认数是计算的前提，计算又有助于加深对数的认识。对初入学的儿童来说，采取逐步扩大数的范围，同时结合数的认识学习一些基本?
1. Recognition and computing combined, interspersed teaching, so that students gradually form a few concepts, to calculate proficiency. Number and calculated knowledge are closely linked with people's gradual development in long-term production practice. Recognition is the premise of calculation, calculation and help to deepen the understanding of the logarithm. For new-school children, to gradually expand the scope of the number, combined with the number of knowledge to learn some basic?