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名师团队:江苏省南通市符永平数学工作室【思维导图】【名师箴言】在“数”这个大家庭中,你将结识“负数”这位新朋友.这势必给同学们研究数学带来新的空间和新的挑战,其中“有理数的运算”不同于小学计算(也称“算术数的运算”).参照小学阶段学习“数”的经验,我们也将先学习有理数的相关概念(如分类、数轴、相反数、绝对值等),然后学习有理数的加、减、乘、除、乘方运算,在遵循运算法则的基础上,
Teacher Team: Fu Yongping, Nantong City, Jiangsu Province Mathematics Studio 【Mind Map】 【Master Proverbs】 In the “Number” family, you will get acquainted with the “negative” new friend. Math brings new space and new challenges, where “rational number of operations ” is different from primary school (also called “arithmetic number ”). With reference to the experience of learning “numbers” in elementary school, we also We will first learn the related concepts of rational numbers (such as classification, axes, reciprocal numbers, absolute values, etc.), and then learn addition, subtraction, multiplication, division and exponentiation of rational numbers. On the basis of following the algorithm,