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【SFB据理数学】破零:锥积AI攻坚记

【SFB据理数学】破零:锥积AI攻坚记

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破零:锥积AI攻坚记

Part.01

一、临危受命:从“零的突破”到沉重压力

关键词

任务与压力

     上周,一份关于组织教师参加“2026年陕西省中小学教师数字素养提升实践活动”的红头文件传送到我的微信里。我粗略看了一下转发到工作群履行通知责任。还没等我细读,校长就把我叫到了办公室,语气中带着坚定:“飞奔,你向获奖的老师取取经,今年,咱们一定要实现‘零的突破’。”这句话如同一块巨石,瞬间压在了我的心头。从那一刻起,我每天睁开眼想的是如何设计作品,闭上眼梦的是如何体现信息素养与AI赋能。但现实是:没有想法,没有经验,甚至没有明确的路径。我像一只无头苍蝇,在文件要求的字里行间反复打转,却始终找不到那个能让我“破零”的突破口。

Part.02

二、绝境求索:从茫然无措到意外发现

关键词

绝境与突破

     接下来的日子,我几乎把自己逼到了极限。白天忙于日常教学,晚上则泡在各种教育平台和科技直播里,像淘金者一样疯狂搜索“AI赋能教育”“互动式课件”的案例。我试过用PPT加超链接,做了简单的互动游戏;我尝试用Deepseek写一个关于梯形面积公式推导的小程序;我甚至下载了万彩动画大师思考如何把课件做成视频;但总觉得这些离“数字化素养”的标杆还差得很远。次次推翻、一次次重来,电脑桌面上堆满了半途而废的文件夹。焦虑像潮水一样漫过心头,就在我快要绝望的那个深夜,我登录了“国家中小学智慧教育平台”,想从这里寻找一些灵感,漫无目的地浏览着文章。突然,朱磊校长的一篇文章跳入眼帘——里面介绍了一个叫“飞象老师”的AI互动式课件生成网页。那一刻,我的心猛地跳了一下,仿佛在漆黑的隧道尽头看到了一丝微光。我顾不上疲惫,立刻点进去,一边看一边操作,像抓住救命稻草一样,开始反复研究它的原理与操作方法。真正的艰辛,才刚刚开始。

Part.03

三、迎难而上:在“飞象老师”中死磕《圆锥的体积》

关键词

摸索与实践

     有了方向,我便一头扎进了“飞向老师”这个AI互动式课件生成网页。我选择的课题是本学期“行思课堂”的课例——《圆锥的体积》——一个在传统课堂上需要动手实验且最能体现可视化优势的内容。

     我以为有了AI工具的辅助,制作过程会顺利很多,然而现实又一次给了我当头一棒。圆锥的体积涉及等底等高的圆柱与圆锥之间的水量关系、三次倒满的经典实验,以及公式的推导逻辑。我试图通过交互式课件让学生“亲手”做实验:点击按钮,圆锥被装满“水”,再倒入圆柱,反复三次,圆柱恰好满。这个设想很美好,但生成出来的第一版课件却惨不忍睹——动画卡顿、计数不准,有时倒一次圆柱就满了,有时倒四次还没满。AI生成的交互逻辑完全不符合数学事实。我只好一遍遍修改提示词,调整参数,甚至逐帧检查动画时间轴。为了精准还原“三等分”的关系,我尝试了不下五种交互方案:从拖拽式、点击式,到滑杆控制水量,再到加入动态数字提示……每一次生成后,我都要反复测试十几次,记下每一处bug。

     更棘手的是,圆柱和圆锥的特征观察需要3D效果,而“飞象老师”默认模板并不支持复杂的三维渲染。我不想就此放弃,于是另辟蹊径:用多张2D序列图模拟转动,终于制作出“360°旋转观察”的效果。为了让学生理解“为什么要等底等高”,我创新地加入了一个对比实验——学生可以选择不同的组合(等底不等高、等高不等底、不等高不等底的圆柱和圆锥)。这个小小的交互设计,花了我整整三个晚上反复调试,才让数值变化与图形变化完全同步。那些天,我的电脑桌面上堆满了“圆锥-1”“圆锥-2”……直到“圆锥-3”。每一次修改都是一次煎熬,但每一次看到交互效果比上一版更流畅、更直观,心底又会涌起一股不甘放弃的倔强。

     终于,在经历了无数次推翻重来之后,一个关于“圆锥的体积”的完整交互式课件诞生了:学生可以点击“倒水”按钮,看着圆锥里的黄色色液体三次注满圆柱;可以旋转视角观察底面积和高的对应关系;也可以利用对比实验,直观感受“等底等高的圆柱与圆锥间3倍关系”的本质。点击“预览”的那一刻,看着屏幕上精准的动画、清晰的引导和流畅的交互,我喜极而泣!

     回望这段从“零”到“一”的过程,我感触最深的一点是:教师如果固步自封、安于现状,拒绝学习新知识、拥抱新技术,那么终其一生,只能沦为日复一日“备课—上课—改作业”的一潭死水——看似忙碌,实则无澜。而这轮AI掀起的教育浪潮,早已不是“要不要学”的选择题,而是“不学就会被淘汰”的生存题。正是这段绞尽脑汁、反复摸索的艰难时光让我明白:唯有不断去观看、去寻找、去试错、去提升,才能让自己从死水中活过来,成为一汪奔涌的活水。未来的课堂,需要的是手持“双证”、敢于破局的双重老师。而我的“圆锥的体积”,只是第一步。

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  1. CONNECT:[ UseTime:0.000898s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001042s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000341s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000294s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000551s ]
  6. SELECT * FROM `set` [ RunTime:0.000200s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000496s ]
  8. SELECT * FROM `article` WHERE `id` = 724047 LIMIT 1 [ RunTime:0.000604s ]
  9. UPDATE `article` SET `lasttime` = 1780889706 WHERE `id` = 724047 [ RunTime:0.017815s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000376s ]
  11. SELECT * FROM `article` WHERE `id` < 724047 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000633s ]
  12. SELECT * FROM `article` WHERE `id` > 724047 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000528s ]
  13. SELECT * FROM `article` WHERE `id` < 724047 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003073s ]
  14. SELECT * FROM `article` WHERE `id` < 724047 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000832s ]
  15. SELECT * FROM `article` WHERE `id` < 724047 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000726s ]
0.199182s