(共21张PPT)
分
数
的
意
义
···5
················3
·······························1
······························
1米
把
看作单位“1”
······(
)
····························(
)
····························(
)
把
看作单位“1”
1米
······(
)
······································(
)
······································(
)
把
看作单位“1”
·······················(
)
·······(
)
·······················(
)
把
看作单位“1”
······(
)
····························(
)
····························(
)
4
1
把
看作单位“1”
1米
······(
)
··························(
)
···························(
)
3
1
把
看着单位“1”
····················(
)
·······(
)
···················(
)
2
1
1
0
单位“1”
2
3
选择合适的材料,分一分,涂一涂,
表示出你喜欢的分数。
我把(
)看作单位“1”,平均分成了
(
)份,涂色部分表示了其中的
(
)份,是(
)。
为什么表示的分数不一样?
通常,冰山露在海面上的部分只占整座冰山的(
)。
通常,冰山露在海面上的部分只占整座冰山的(
——
)。
A
B