当前位置:首页>教案>中班科学活动《摩天轮转一转》教案

中班科学活动《摩天轮转一转》教案

  • 2026-04-17 00:21:47
中班科学活动《摩天轮转一转》教案

一、活动目标

1. 认知目标:感知摩天轮的旋转特征(匀速、循环、绕中心转动),知道摩天轮是生活中常见的游乐设施。

2. 能力目标:能动手操作简易摩天轮模型,尝试探索让摩天轮平稳转动的方法,发展观察、动手和问题解决能力。

3. 情感目标:对摩天轮的转动现象产生兴趣,乐于参与科学探索活动,体验合作与成功的快乐。

二、活动准备

(一)物质准备

1. 教具:摩天轮实景视频、卡通风格摩天轮图片(含整体结构、转动部件特写)、大型可操作摩天轮模型(由支架、圆盘、座舱组成)。

2. 学具:每组一套简易摩天轮制作材料(硬纸圆盘、吸管支架、小木棒、彩笔、双面胶),记录卡(画有“转动顺畅”“转动卡顿”“无法转动”三种图标)。

3. 其他:舒缓的背景音乐、卡通贴纸(奖励积极参与的幼儿)。

(二)经验准备

幼儿有过乘坐旋转类游乐设施(如转椅、木马)的经验,对“转动”现象有初步感知。

三、活动过程

(一)导入活动:情境激趣,唤醒经验(5分钟)

1. 播放卡通风格摩天轮实景视频,提问:“小朋友们,视频里这个高高的、圆圆的设施是什么呀?你们坐过摩天轮吗?坐的时候感觉怎么样?”

2. 出示摩天轮图片,引导幼儿观察:“摩天轮有哪些部分呀?(支架、圆盘、座舱)它是怎么动的呢?”鼓励幼儿用动作模仿摩天轮的转动。

3. 小结:摩天轮是游乐园里的大型游乐设施,它会绕着中心慢慢转动,坐在里面可以看到很远的风景。今天我们就一起来探索摩天轮的秘密吧!

(二)探索活动:动手操作,感知旋转(15分钟)

1. 观察模型,初步感知

- 出示大型可操作摩天轮模型,师幼共同观察结构:“这个摩天轮模型怎么才能转起来呢?”(引导幼儿发现“中心轴”的作用)

- 教师转动模型,提问:“摩天轮是绕着哪里转的?转动的时候是快还是慢?座舱会掉下来吗?为什么?”(引导幼儿感知“绕中心匀速转动”“座舱固定在圆盘上”的特点)

2. 分组制作,探索转动

- 介绍简易摩天轮制作材料,讲解制作步骤:“先把硬纸圆盘涂上喜欢的颜色,再把小木棒穿过圆盘中心当轴,最后固定在吸管支架上。”

- 幼儿分组制作,教师巡回指导:① 提醒幼儿将小木棒对准圆盘中心;② 鼓励幼儿尝试不同的固定方式(如双面胶粘贴、木棒穿插);③ 引导幼儿观察自己制作的摩天轮是否能转动。

- 幼儿尝试转动自制摩天轮,用记录卡记录结果:“如果你的摩天轮能顺畅转动,就贴上‘转动顺畅’的图标;如果转不动或卡顿,就贴上对应的图标。”

3. 分享交流,解决问题

- 邀请幼儿展示自己的作品,分享制作和转动的情况:“你的摩天轮能转起来吗?为什么转不起来呀?”

- 引导幼儿共同分析问题:“如果小木棒没有对准中心会怎么样?支架不够稳会影响转动吗?”鼓励幼儿相互帮助调整模型(如调整中心轴位置、加固支架)。

- 再次尝试转动调整后的摩天轮,体验成功的快乐。

(三)结束活动:总结提升,延伸兴趣(5分钟)

1. 师幼共同总结:“今天我们认识了摩天轮的结构,知道它是绕着中心匀速转动的。通过动手制作,我们发现只有中心轴对准、支架稳固,摩天轮才能顺畅转动。”

2. 播放舒缓的音乐,幼儿手持自制摩天轮,跟着音乐模仿摩天轮慢慢转动,感受旋转的乐趣。

3. 延伸:“除了摩天轮,生活中还有哪些东西会像摩天轮一样转动呢?(如风扇、车轮、钟表)小朋友们回家后可以找一找,明天和大家分享哦!”

四、活动延伸

1. 区域活动:在科学区投放更多旋转类材料(如齿轮、陀螺、风车),鼓励幼儿继续探索转动现象;在美工区提供丰富材料,让幼儿制作更精致的摩天轮模型。

2. 家园共育:建议家长带幼儿观察生活中的转动物品,拍摄视频或照片分享到班级群,共同丰富幼儿对“旋转”的认知。

五、教师思考(结合《3-6岁儿童学习与发展指南》)

1. 目标达成:本次活动围绕“认知、能力、情感”三维目标设计,符合《指南》科学领域“亲近自然,喜欢探究”“具有初步的探究能力”的目标要求。通过情境导入、动手操作,幼儿基本感知了摩天轮的旋转特征,大部分幼儿能成功制作并调整简易模型,探究兴趣得到激发。

2. 活动亮点:采用“观察-制作-探索-分享”的流程,符合中班幼儿“做中学”的学习特点;卡通风格的教具、图片和奖励贴纸,契合幼儿的审美和兴趣,有效提升了参与度;记录卡的使用,帮助幼儿梳理探究结果,培养了初步的科学记录意识。

3. 改进方向:部分幼儿在调整中心轴位置时存在困难,下次活动可提前制作“中心标记”贴纸,方便幼儿定位;可增加齿轮等复杂材料,满足能力强的幼儿的探究需求,进一步拓展对“转动传递”的认知;家园共育延伸部分,可设计简单的“寻找转动物品”任务单,让家长更有针对性地引导幼儿观察。

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  1. CONNECT:[ UseTime:0.000561s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000817s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000451s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000256s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000468s ]
  6. SELECT * FROM `set` [ RunTime:0.000204s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000507s ]
  8. SELECT * FROM `article` WHERE `id` = 462193 LIMIT 1 [ RunTime:0.000404s ]
  9. UPDATE `article` SET `lasttime` = 1776773827 WHERE `id` = 462193 [ RunTime:0.001575s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000274s ]
  11. SELECT * FROM `article` WHERE `id` < 462193 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001125s ]
  12. SELECT * FROM `article` WHERE `id` > 462193 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000380s ]
  13. SELECT * FROM `article` WHERE `id` < 462193 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001450s ]
  14. SELECT * FROM `article` WHERE `id` < 462193 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001168s ]
  15. SELECT * FROM `article` WHERE `id` < 462193 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002102s ]
0.082011s