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中班科学《有趣的漩涡》视频+教案+课件+反思

  • 2026-06-17 16:45:13
中班科学《有趣的漩涡》视频+教案+课件+反思

完整课程(拉到文末获取)

活动目标:

1.探索不同的方法变出漩涡,仔细观察并记录漩涡的有趣现象。

2.用自己的语言较清楚地表达自己的发现和感受。

活动重点:探索不同的方法变出漩涡,仔细观察并记录漩涡的有趣现象。

活动难点:用自己的语言较清楚地表达自己的发现和感受。

活动准备:

PPT、漩涡瓶、笔、记录纸、抽纸、黑板

活动过程:

导入:玩教具导入

教师:今天老师给你们带来了一个很特别的玩具(漩涡瓶),看,它像什么?

幼儿:像沙漏、哑铃......

教师:给你这个玩具,你们想怎么玩?

幼儿:竖着玩、横着玩、上下玩......

第一次玩——发现漩涡

1.交待要求

(1)用自己的办法玩一玩,看看能有什么发现?

(2)把你的玩法和发现记在心里。

2.幼儿操作

3.交流分享

提问:说一说你是怎么玩的?

小结:水快速地流下来,像龙卷风一样,叫漩涡。

第二次玩——制造漩涡

1.猜测:你们想不想变出漩涡?还有什么办法变出漩涡呢?

2.要求

(1)试一试用不同的方法变出漩涡。

(2)记住你变出漩涡的好方法分享给大家。

3.幼儿操作

4.交流分享

教师提问:你们玩出漩涡了吗?说说你们的玩法。

小结:孩子们太会想办法了,用各种方法变出了漩涡。用力甩、上下摇、左右摇等,了不起。

第三次玩——记录漩涡

1.猜测:能不能用很快的速度变出漩涡?

2.要求:

(1)这次有新挑战了,用最快的速度变出漩涡,仔细观察瓶子里水的样子。

(2)把水的样子记录在纸上,等一会分享给朋友。

3.幼儿操作

4.交流分享

提问:说说你们记录的发现?

小结:从不同的角度观察漩涡,看到的漩涡是不同的。

迁移拓展——生活中的漩涡

观看PPT:在生活中,我们常常能看到漩涡,科学家和发明家用漩涡发明了很多生活中的用品,给我们的生活带来了方便!

小结:小小的事情,蕴含大大的科学奥秘。

延伸:关于漩涡的奥秘,还有很多很多,孩子们,活动结束后可以在区角里继续玩漩涡瓶,发现不同的漩涡,再来说一说关于漩涡的新发现。

久久老师微信 849896235 

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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:0.000556s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000765s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000327s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000255s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000511s ]
  6. SELECT * FROM `set` [ RunTime:0.000213s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000498s ]
  8. SELECT * FROM `article` WHERE `id` = 507842 LIMIT 1 [ RunTime:0.004151s ]
  9. UPDATE `article` SET `lasttime` = 1782061270 WHERE `id` = 507842 [ RunTime:0.008148s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000248s ]
  11. SELECT * FROM `article` WHERE `id` < 507842 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000448s ]
  12. SELECT * FROM `article` WHERE `id` > 507842 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000440s ]
  13. SELECT * FROM `article` WHERE `id` < 507842 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000724s ]
  14. SELECT * FROM `article` WHERE `id` < 507842 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000596s ]
  15. SELECT * FROM `article` WHERE `id` < 507842 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001367s ]
0.087060s