二年级下册数学ppt课件-2.2《认识几时几分》苏教版

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,*,苏教版数学二年级下册,认识几时几分,苏教版数学二年级下册认识几时几分,1,2,3,4,5,6,7,8,9,10,11,12,钟面有（ ）个数字，（ ）个大格，每大格分（ ）个小格，钟面上共有（ ）小格,12,12,5,60,123456789101112钟面有（,1,2,3,4,5,7,6,8,11,12,10,9,123457681112109,1,2,3,4,5,7,6,8,11,12,10,9,5,1234576811121095,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,123457681112109510152025303540,1,2,3,4,5,6,7,8,9,10,11,12,1,时,=60,分,1234567891011121时=60分,二年级下册数学ppt课件-2,8,时零,5,分,8,:,05,8时零5分8 : 05,二年级下册数学ppt课件-2,二年级下册数学ppt课件-2,3,时零,5,分,3:05,3,时,20,分,3:20,3,时,45,分,3:45,3时零5分3时20分3时45分,3,时,55,分,3:55,3时55分,1.,1.,715,2,.,我来告诉你,7152.我来告诉你,120,120,855,855,小结：,认识几时几分时，先看时针，再看分针。时针走过数字几就是几时多，多多少，再看分针走了多少个小格，就是几分钟。合起来就是几时几分。,小结：,下,课,再,见,下课再见,