资源描述
单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,小学数学西师版实验教科书,二年级(上),用厘米作单位量长度,cm,0,1,2,3,4,5,6,7,8,9,10,11,认,识,直,尺,刻度线,0,0,刻度线,刻度,0,cm,1,2,3,4,5,6,7,8,9,10,11,认识,1,厘米,1,厘米,1cm,1cm,1cm,1cm,1cm,1cm,1cm,1cm,1cm,1cm,2cm,1,1,0,2,3,4,5,6,7,8,9,10,认识几厘米,1,1,0,2,3,4,5,6,7,8,9,10,认识几厘米,4cm,7cm,5cm,4cm,7cm,5cm,练习,1.,下面物体的长各是多少厘米。,9,7,3,X,(),树叶长,5cm,铅笔长,7cm,(),夹子长,3cm,(),2.,判断,铅笔长,大约,是(),cm.,9,铅笔长,大约,是(),cm.,8,小棒长()厘米。,6,8,2,练习,3,:用断尺测量,1,1,0,2,3,4,5,6,7,8,9,10,认识几厘米,3cm,例,1,:,量小棒,小棒长()厘米。,6,8,2,X,丁丁,当当,我的铅笔有,7,个正方形那样长。,我的铅笔有,6,个正方形那样长。,1,2,3,4,5,6,7,1,2,3,4,5,6,刻度,刻度线,认识直尺,0,刻度线,认识直尺,10,9,cm,8,1,0,2,3,4,5,6,7,8,9,10,认识,1,厘米(,1cm),
展开阅读全文