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AI赋能数学教具:四下 三角形AI工具 -教师人工智能应用“用AI·创AI”优秀案例

AI赋能数学教具:四下 三角形AI工具 -教师人工智能应用“用AI·创AI”优秀案例

四下《三角形》这节课学生老师听不懂怎么办?这个AI可视化教具,一步步演示、实时验证,课堂效果直接拉满!

一、产品简介

这是一款用于小学数学「认识三角形」知识教学的互动课件,帮助教师直观展示三角形的分类、性质和特点,支持屏幕触控操作。

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二、界面布局


三、功能操作

1. 选择预设三角形

在左侧「三角形预设」区域,提供了 7 种预设类型:

预设

角度特点

说明

等边三角形

60° + 60° + 60°

三边相等

等腰三角形

约80° + 50° + 50°

两边相等,两底角相等

直角三角形

90° + 45° + 45°

有一个直角

等腰直角三角形

90° + 45° + 45°

两直角边相等

钝角三角形

120° + 30° + 30°

有一个钝角

锐角三角形

约60° + 60° + 60°

三个角都锐

随机三角形

随机

生成任意形状

操作方法:点击卡片即可切换


2. 拖拽顶点改变形状

三角形三个顶点(A/B/C)可以自由拖动:

  • A 点:蓝色圆点

  • B 点:绿色圆点

  • C 点:橙色圆点

    操作方法

    1. 鼠标或手指点击顶点

    2. 拖动到目标位置

    3. 松开即可

      教学提示:拖拽过程中,角度数值实时更新,学生可观察角度变化


      3. 旋转变换

      • 范围:-180° 到 180°

      • 操作:拖动滑块或点击 ± 按钮

      • 用途:翻转三角形展示不同角度

        4. 缩放变换

        • 范围:50% 到 200%

        • 操作:拖动滑块或点击 ± 按钮

        • 用途:放大或缩小三角形,便于学生观察


        5. 显示/隐藏高线

        点击顶部「显示高」按钮,可切换显示三角形的高线(红色虚线)。


        6. 查看分类信息

        右侧卡片实时显示当前三角形的分类:

        分类方式

        示例

        按边分类

        等边 / 等腰 / 不等边

        按角分类

        锐角 / 直角 / 钝角


        四、练习题模块

        点击顶部「练习题」标签进入答题模式:

        题目类型

        包含 8 道选择题,涵盖:

        • 三角形内角和(180°)

        • 等边三角形的特点

        • 等腰三角形的定义

        • 直角三角形的性质

        • 锐角/钝角三角形的区分

        • 综合分类判断

          答题流程

          1. 学生阅读题目,选择答案

          2. 点击「提交答案」

          3. 查看正确答案和解析

          4. 点击「下一题」继续

            功能按钮

            • 重新开始:清空进度,重新练习

            • 上一题/下一题:切换题目


              五、教学建议

              课堂导入

              先展示预设三角形,让学生观察不同类型的特点

              互动探究

              让学生自己拖拽顶点,观察:

              • 什么时候变成直角三角形?

              • 什么时候变成等腰三角形?

              • 三个角之和始终是多少?

                知识巩固

                让学生切换到练习题模式,完成答题


                六、常见问题

                Q: 三角形拖拽后变形了怎么办?

                A: 点击预设卡片可恢复标准形状

                Q: 如何让三角形恢复正常位置?

                A: 点击「重置」按钮

                Q: 触摸不灵敏怎么办?

                A: 确保手指触摸到顶点圆点中心区域

                配套的操作流程简单清晰,支持重复尝试与对比优化,学生不仅学会了计算,更学会了分析与选择。让课堂更有参与感,老师们快来试试吧!这块教具是可以本地化运行的html文件,不需要联网、不需要复杂的部署,直接插入希沃就可以使用,老师如果有赛课需求也可以参考这个进行定制,获奖概率倍增!

                联系赵老师获得技术支持:bj1gk2(备注:教具)

                基本 文件 流程 错误 SQL 调试
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                119. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/TimeFieldQuery.php ( 7.43 KB )
                120. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/AggregateQuery.php ( 3.26 KB )
                121. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/ModelRelationQuery.php ( 20.07 KB )
                122. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/ParamsBind.php ( 3.66 KB )
                123. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/ResultOperation.php ( 7.01 KB )
                124. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/WhereQuery.php ( 19.37 KB )
                125. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/JoinAndViewQuery.php ( 7.11 KB )
                126. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/TableFieldInfo.php ( 2.63 KB )
                127. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-orm/src/db/concern/Transaction.php ( 2.77 KB )
                128. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/framework/src/think/log/driver/File.php ( 5.96 KB )
                129. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/framework/src/think/contract/LogHandlerInterface.php ( 0.86 KB )
                130. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/framework/src/think/log/Channel.php ( 3.89 KB )
                131. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/framework/src/think/event/LogRecord.php ( 1.02 KB )
                132. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-helper/src/Collection.php ( 16.47 KB )
                133. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/framework/src/think/facade/View.php ( 1.70 KB )
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                145. /yingpanguazai/ssd/ssd1/www/wwww.yeyulingfeng.com/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
                1. CONNECT:[ UseTime:0.000505s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
                2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000769s ]
                3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000330s ]
                4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000286s ]
                5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000477s ]
                6. SELECT * FROM `set` [ RunTime:0.000199s ]
                7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000522s ]
                8. SELECT * FROM `article` WHERE `id` = 589079 LIMIT 1 [ RunTime:0.001744s ]
                9. UPDATE `article` SET `lasttime` = 1778276679 WHERE `id` = 589079 [ RunTime:0.004383s ]
                10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000324s ]
                11. SELECT * FROM `article` WHERE `id` < 589079 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000490s ]
                12. SELECT * FROM `article` WHERE `id` > 589079 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000423s ]
                13. SELECT * FROM `article` WHERE `id` < 589079 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001825s ]
                14. SELECT * FROM `article` WHERE `id` < 589079 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000751s ]
                15. SELECT * FROM `article` WHERE `id` < 589079 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001113s ]
                0.095295s