[苏教版]三年级（上册）数学千克和克分数的初步认识期末复习教学课件.pptx

该【[苏教版]三年级（上册）数学千克和克分数的初步认识期末复习教学课件 】是由【李小二工作室】上传分享，文档一共【16】页，该文档可以免费在线阅读，需要了解更多关于【[苏教版]三年级（上册）数学千克和克分数的初步认识期末复习教学课件 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。一两、三位数乘一位数··························································1二千克和克·········································································28三长方形和正方形································································36周长是多少······································································46四两、三位数除以一位数·······················································48五解决问题的策略································································71间隔排列·········································································78六平移、旋转和轴对称··························································80七分数的初步认识(一)·······················································87多彩的“分数条”·····························································96八期末复****183;········································································98苏教版三年级上册千克和克分数的初步认识(一)整理复****1千克和克称一般物品有多重,常用千克作单位。千克可以用字母“kg”表示。称比较轻的物品,常用克作单位。克可以用字母“g”表示。1千克=1000克(质量单位)2分数的初步认识(一)读作:四分之三分数线分子分母其中的几份平均分的份数平均分比较分数大小的方法是:分子是1的分数,分母越小,表示分的份数越少,其中的1份越大。分子相同,分母小的分数大。分成同样多的份数,取的份数越多就越大。分母相同,分子大的分数越大。分数的简单计算:同分母分数相加减,分母不变,只把分子相加减。1可以看作是分子分母相同的分数。1与分数相减:()里填合适的单位。(1)一袋大米重25()。(2)一袋水果大约重3()。(3)一盒饼干重500()。(4)一筐土豆重18()。千克千克克千克随堂练****选自教材第101页第19题】=()克9000克=()千克8千克=()克2000克=()千克3000980002【选自教材第101页第20题】,一个橘子45克。50+20+20=90(g)90÷2=45(g)【选自教材第101页第21题】