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幼儿园教师动物保护色_科学_中班_教案+PPT课件备课图片

  • 2026-04-09 17:25:33
幼儿园教师动物保护色_科学_中班_教案+PPT课件备课图片

动物保护色

中班 科学

活动目标

l感受动物世界的奇妙,激发热爱自然、保护动物的情感。

l知道动物会用多种方法保护自己,理解保护色和拟态的意义。

l能通过观察和讨论发现动物的保护色与拟态现象。

活动准备

l课件准备:《动物保护色》PPT。

活动过程

一、森林舞会:导入情境,激发幼儿兴趣。

——森林里正在举办一场热闹的森林舞会,小动物们在尽情地舞蹈。

——突然,远处传来了老虎的吼叫声,小动物们纷纷都藏了起来。

——老虎跑来仔细地找来找去,一只小动物都没找到,只看到大树和草丛。

——猜一猜小动物们都藏到哪里去了?

二、寻找动物:引导幼儿了解动物的保护色和拟态作用。

1.观察图片,初步感知动物的保护色和拟态的作用。

——老虎离开啦!我们一起找一找藏起来的小动物们吧!

——它们分别藏在了哪里?

——为什么老虎找不到这些动物?

小结:原来小动物们藏的时候,会找和自己“长得像”的地方,有的颜色和环境一样,这叫保护色;有的形状和环境一样,这叫拟态。有了保护色和拟态,敌人就不容易找到它们啦!

2.师幼讨论交流,进一步了解动物的保护色和拟态作用。

——青蛙的颜色为什么是绿色的?          ——蜥蜴为什么藏到了和它身体颜色一样的石头上?

——竹节虫为什么长得像树枝?

——如果这些小动物变成其他颜色或样子,会怎么样?

小结:这些动物的颜色或形态和它们生活的环境相似,可以通过保护色和拟态伪装自己,帮助自己躲过危险,也可以利用保护色和拟态隐藏好捕捉食物。

三、动物捉迷藏:拓展认识更多用保护色和拟态伪装自己的动物。

1.师幼讨论还有哪些动物用保护色和拟态伪装自己。

——你们还知道哪些动物用保护色和拟态伪装自己?(变色龙)

2.出示图片,鼓励幼儿帮不同的动物找到适合的伪装地点。

——下面小动物们正在玩捉迷藏的游戏,它们应该藏在哪里才不容易被找到呢?          ——一起来帮帮它们吧!

四、链接生活:引导幼儿感知保护色在生活中的运用。

——在生活中,人们也用到了保护色,你们知道有哪些吗?

小结:解放军叔叔穿迷彩服和坦克刷上绿色,在树林里就不容易被敌人发现。原来保护色不光动物有,人们也学会用它来保护自己。

活动延伸

l区域活动

在科学区投放动物自我保护方式的图片或绘本,如刺猬缩成球、壁虎断尾等,引导幼儿继续探索。

l家园共育

家长与幼儿共读绘本《藏起来了》《动物们的相貌》等,帮助幼儿进一步认识动物的保护色和拟态。

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  1. CONNECT:[ UseTime:0.000956s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001354s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.010867s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000898s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001125s ]
  6. SELECT * FROM `set` [ RunTime:0.000439s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001084s ]
  8. SELECT * FROM `article` WHERE `id` = 487563 LIMIT 1 [ RunTime:0.001070s ]
  9. UPDATE `article` SET `lasttime` = 1775818023 WHERE `id` = 487563 [ RunTime:0.021564s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000600s ]
  11. SELECT * FROM `article` WHERE `id` < 487563 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001213s ]
  12. SELECT * FROM `article` WHERE `id` > 487563 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001168s ]
  13. SELECT * FROM `article` WHERE `id` < 487563 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001831s ]
  14. SELECT * FROM `article` WHERE `id` < 487563 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001763s ]
  15. SELECT * FROM `article` WHERE `id` < 487563 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.018074s ]
0.200917s