新人教版三年级数学下册(复习提纲)知识点归纳
1第一单元位置与方向1、(东与西)相对,(南与北)相对,(东南与西北)相对,(西南与东北)相对。面南左为东,面北左为西,面东左为北,面西左为南。2、地图通常是按(上北、下南、左西、右东)来绘制的。通常所说的八个方向:东、西、南、北、东南、西北、西南、东北。3、会看简单的路线图,会描述行走路线。(做题时先标出东南西北。)一定写清楚从哪儿向哪个方向走,走了多少米,到哪儿再向哪个方向走就到了哪里。(在转弯处要注意方向的变化)判断一个地方在什么方向,先要找到一个为中心点(观测点)处画“米”字符号,再进行判断。4、指南针是用来指示方向的,它的一个指针永远指向(南方),另一端永远指向(北方)。5、生活中的...
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