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无限不循环小数叫做无理数.看似简单的概念,理解起来总不像有理数那样直观易懂,同学们在刚接触时,“不识庐山真面目”,存在着许多模糊认识,形成了一些误区.下面就一些易错、易混的概念加以辨析,力求帮助同学们早日走出误区.误区1无限小数是无理数.辨析无限小数包括无限循环小数
Infinitely non-recursive decimals are called irrational numbers. The seemingly simple concept is not as intuitive and understandable as the rational numbers. When students first touch, they “do not know the true colors of the mountains.” There are many vague understandings and some misunderstandings. Analyze some of the error-prone and confusable concepts and try to help students get out of their mistakes as soon as possible. Misunderstandings 1 Infinite decimals are irrational numbers. Analytical analysis of infinite decimals includes infinite loops.