当前位置:首页>PPT>幼儿园中班科学《有趣的滚动》微课视频+PPT课件+教学设计+教学反思分享

幼儿园中班科学《有趣的滚动》微课视频+PPT课件+教学设计+教学反思分享

  • 2026-04-08 18:13:29
幼儿园中班科学《有趣的滚动》微课视频+PPT课件+教学设计+教学反思分享

1.视频

2.PPT内容

3.教学设计

4.教学反思

科学活动《有趣的滚动》教学反思

本次活动是基于孩子们在自主游戏中开展的游戏,在游戏回顾时通过游戏观察和与幼儿的交流,我发现幼儿对于物体在不同高度的斜坡上滚动速度的快慢是没有概念和探索的,因此设计了本次科学活动,引导幼儿通过自主实验去探索关于滚动的秘密,激发幼儿对科学探索的兴趣。活动结合《指南》科学领域目标,通过猜想、操作、验证的流程引导幼儿主动探索,整体达到了预期效果,但也存在一些值得反思和改进的细节。以下是对本次活动的反思:

一、活动亮点:情境化探究激发兴趣

1.生活经验迁移,激活探究欲望

活动以幼儿在自主游戏中搭建斜坡的真实场景引入,通过播放游戏视频唤醒已有经验,引发幼儿对“滚动速度与斜坡高度关系”的认知冲突(如诺诺、林林等幼儿的讨论)。这种从生活情境切入的方式,让科学探究更贴近幼儿的日常经验,有效激发了他们的好奇心和参与热情。

2.结构化探究流程,培养科学思维

活动设计遵循“猜想—验证—总结”的科学探究逻辑:

猜想环节:通过投票表和A4纸记录猜想,引导幼儿用简单符号表达观点(如“√”“×”或图画),符合中班幼儿直观形象的思维特点。

验证环节:采用对比实验法(控制斜坡长度、改变高度),操作过程中,初步渗透“变量控制”的科学思维。幼儿在亲手调整斜坡高度、观察瓶子滚动的过程中,直观感知到高度对速度的影响。

总结环节:通过分享实验结果和播放验证视频,帮助幼儿梳理经验,明确“同一长度下,斜坡越高、滚动越快”的结论,形成清晰的认知。

3.材料简易实用,操作安全可控

活动选用长板、积木、瓶子等生活常见材料,成本低且安全性高。材料数量充足(每组两块斜坡、两个瓶子),确保幼儿能直接操作、反复验证,避免了因材料不足导致的等待或冲突。

二、问题与不足:细节优化提升实效

1.猜想记录方式对部分幼儿有难度

活动要求幼儿用“水彩笔在A4纸记录猜想”,但中班幼儿的书写和绘画能力参差不齐。部分幼儿因“不会画瓶子或斜坡”而感到挫败,甚至随意涂鸦,未能准确表达猜想。

2.对比实验的规则引导不够细致

虽然活动强调“只能改变斜坡高度、不能改变长度”,但在操作中发现:

部分小组未对齐斜坡起点,导致长度不一致,影响实验准确性;

幼儿对“同时释放瓶子”的要求理解不足,会出现一个瓶子先放、一个瓶子后放的情况,难以直观对比速度。

3.个体差异关注不足,参与均衡性待提升

在游戏中,能力较强的幼儿往往主导操作(如调整斜坡、记录结果),而能力较弱的幼儿参与度较低,未能充分体验探究的全过程。

4.延伸环节的引导不够具体

活动结束时提出“瓶子重量对滚动速度的影响”作为延伸问题,但未提供明确的探索方向(如是否需要更换材料、如何比较重量等),可能导致幼儿在后续探究中目标模糊。

三、改进策略:聚焦幼儿经验,细化指导策略

1.简化记录方式

“绘画记录”改为“符号贴纸记录”:提供标有“1号斜坡”“2号斜坡”的底板,幼儿只需粘贴“快”“慢”图标(如“△”代表快、“○”代表慢),或用颜色贴纸区分猜想结果,让记录更直观、便捷。

2.强化实验规则,提供可视化指引

在斜坡起点处粘贴“对齐标记”(如彩色胶带),提示幼儿固定斜坡长度;

制作“同步释放”示意图,通过图片分步展示“两人同时松手”的动作,并用儿歌辅助记忆(如“一、二、三,一起放”),帮助幼儿掌握合作要点。

3.细化延伸活动,提供探究支架

在科学区投放不同重量的瓶子(如空瓶、装水/沙子的瓶子)、天平秤等材料,设置“问题墙”引导幼儿:

猜想:“重瓶子和轻瓶子,谁滚得更快?”

验证:用同一斜坡测试不同重量的瓶子,尝试用秒表或“数数计时”记录时间;

记录:用表格对比“瓶子重量”与“滚动时间”的关系,进一步深化对“变量”的理解。

四、总结与反思

本次活动以幼儿的兴趣和问题为导向,成功搭建了“生活经验—科学探究—经验升华”的学习路径,幼儿在“玩斜坡”的过程中主动观察、积极思考,基本达成了“感知高度与速度关系”的核心目标。未来需更聚焦幼儿的学习特点,从材料设计、规则引导、个体支持等细节入手,让科学探究既充满趣味,又富有深度,真正成为幼儿“做中学、玩中学”的快乐体验。

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  1. CONNECT:[ UseTime:0.000878s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001135s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.008000s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000722s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001776s ]
  6. SELECT * FROM `set` [ RunTime:0.011179s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001691s ]
  8. SELECT * FROM `article` WHERE `id` = 482100 LIMIT 1 [ RunTime:0.007406s ]
  9. UPDATE `article` SET `lasttime` = 1775865452 WHERE `id` = 482100 [ RunTime:0.013678s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.001634s ]
  11. SELECT * FROM `article` WHERE `id` < 482100 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.005776s ]
  12. SELECT * FROM `article` WHERE `id` > 482100 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004769s ]
  13. SELECT * FROM `article` WHERE `id` < 482100 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001837s ]
  14. SELECT * FROM `article` WHERE `id` < 482100 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002587s ]
  15. SELECT * FROM `article` WHERE `id` < 482100 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004428s ]
0.233007s