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幼儿园课件互动版本有趣的排序_数学_大班_教案+ppt课件图片

  • 2026-05-11 07:49:16
幼儿园课件互动版本有趣的排序_数学_大班_教案+ppt课件图片

有趣的排序

大班数学

活动目标

l感知有规律的排序,知道2组以上一样的才有规律。

l探索不同的排序方法,了解排序方法的多样性。

l体验操作探索的乐趣,感受生活中有规律排序的美。

活动准备

l课件准备:课件《有趣的排序》、排序的插图5张。

l纸面教具:打印《小动物排排队》、《小动物》

活动过程

l教师给幼儿按规律排座位,引导孩子感知有规律的排序,并鼓励孩子探索不同的排序方法。

1.教师按“男-女-男-女”的顺序排座位,引导孩子观察出规律。

——请你们认真观察身边的小朋友,谁能告诉老师,今天排的座位有什么特别呢?

——有的小朋友已经发现了,我们今天是按照一个男生一个女生,再一个男生一个女生这样有规律的坐小椅子的。

2.鼓励幼儿探索更多排序方法。

—— 我们现在把第二个女生和第三个男生换一下座位,现在是什么规律呢?(2个男生-2个女生)

—— 我们再想想看,小朋友还可以怎么坐呢?

l观察画面,引导幼儿了解排序方法的多样性。

——有一些小动物也像我们一样有规律地排队,我们来看一看吧。

——谁来举手告诉老师,它们是按什么规律排队的?

小结:只有一组的排序我们并不能发现规律,只有2组或以上相同的排序,我们把它称为有规律的排序。

l出示图片,进一步巩固幼儿对规律排序的认知。

1.出示水果图片,请幼儿判断哪一排是有规律地排序。

——这两排水果中,哪一排算有规律地排序?

——你是怎么判断的?

2.出示蜜蜂和蝴蝶的图片,引导幼儿做出正确排序。

——小蜜蜂和小蝴蝶们也想有规律地排队,有一只小蜜蜂和小蝴蝶不知道该排在哪里,你能帮助它们吗?

l给幼儿发放教学材料“小动物排排队”和“小动物”,鼓励幼儿尝试多种方式给小动物有规律地排队。

——你可以用2种、3种或4种小动物,来进行有规律地排队。 

——看看哪位小朋友可以排出多种方式呢?

活动延伸

l日常活动:观察生活中其他有规律的现象,如外墙瓷砖、床单的花纹等等,然后和老师同学们分享吧。

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  138. /yingpanguazai/ssd/ssd1/www/a.sjds.net/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
  139. /yingpanguazai/ssd/ssd1/www/a.sjds.net/runtime/temp/97cad012e8e159aae2fe347a411e8351.php ( 12.06 KB )
  140. /yingpanguazai/ssd/ssd1/www/a.sjds.net/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.001204s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001781s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000677s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000694s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001320s ]
  6. SELECT * FROM `set` [ RunTime:0.000525s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001660s ]
  8. SELECT * FROM `article` WHERE `id` = 495121 LIMIT 1 [ RunTime:0.000972s ]
  9. UPDATE `article` SET `lasttime` = 1779014893 WHERE `id` = 495121 [ RunTime:0.002428s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000801s ]
  11. SELECT * FROM `article` WHERE `id` < 495121 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001223s ]
  12. SELECT * FROM `article` WHERE `id` > 495121 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000981s ]
  13. SELECT * FROM `article` WHERE `id` < 495121 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001541s ]
  14. SELECT * FROM `article` WHERE `id` < 495121 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001849s ]
  15. SELECT * FROM `article` WHERE `id` < 495121 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002479s ]
0.196098s