一年级数学上册第6单元《11_20各数的认识》单元分析素材新人教版.doc

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11120 各数的认识教材分析已学过相关内容 本单元主要课时内容 后续学习内容年级学期主要内容 册数 内容一上: 20 以内数的进位加法一下 20 以内的退位减法100 以内数的认识100 以内的加减法(一)二上 100 以内的加减法(二)二下 万以内数的认识一上15 的认识和加减法610 的认识和加减法1120 各数的数数、读数、组成、顺序和大小认识计数单位“十位和个位”及写数10 加几和相应的减法加法和减法算式各部分的名称解决问题 三上 万以内的加法和减法(一)万以内的加法和减法(二)教材课时建议1.单元学习目标借助实物、小棒、直尺等直观素材,能正确数出数量在 1120 之间的物体的个数,知道这些数是由 1 个十和几个一组成的,掌握 20 以内数的组成、顺序和大小。认识个位和十位两个数位,初步感知十进制,认识位置制以及初步体会位置制的思想。知道加法和减法算式中各部分的名称,能够正确计算简单的 10 加几和相应的减法,发现 10加几和相应减法的计算规律。会运用“画图”“数数”等策略灵活解决问题。从而进一步深化基数、序数、数的大小、数序的综合运用,会解决求两数之间数字个数的简单实际问题。2.本单元学习时间约 6 课时,具体分配如下:数 1120 各数的认识2 课时10 加几和相应的减法2 课时整理与复习1 课时综合与实践主题活动1 课时

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