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四年级数学《三角形的分类》精品PPT

  • 2026-06-11 15:09:12
四年级数学《三角形的分类》精品PPT

🔥四年级数学《三角形的分类》精品PPT

🎮 沉浸式情景设计
✅ 开篇就用 “三角形王国探险” 引入，3D 卡通画风超吸睛
✅ 按角分：锐角 / 直角 / 钝角三角形，做成 “城门暗号” 关卡，直观又好记
✅ 按边分：等腰 / 等边三角形，用量角器实操演示，一看就懂
✅ 课堂练习做成 “迷路的三角形居民” 闯关游戏，做题都不喊累！
📚 全套配套
20 页 PPT + 完整教案 + 逐字讲稿 + 课堂学习单，
公开课、常态课都能用！
#小学数学[话题]#  #四年级数学[话题]#  #三角形的分类[话题]#  #公开课课件[话题]# #数学课件[话题]#  #老师备课[话题]#  #小学数学公开课[话题]#  #课件分享[话题]# #数学公开课[话题]# #ppt课件[话题]#

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  1. CONNECT:[ UseTime:0.000913s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000872s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000301s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000312s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000501s ]
  6. SELECT * FROM `set` [ RunTime:0.000205s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000631s ]
  8. SELECT * FROM `article` WHERE `id` = 517498 LIMIT 1 [ RunTime:0.000456s ]
  9. UPDATE `article` SET `lasttime` = 1781541183 WHERE `id` = 517498 [ RunTime:0.018448s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.001024s ]
  11. SELECT * FROM `article` WHERE `id` < 517498 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.005911s ]
  12. SELECT * FROM `article` WHERE `id` > 517498 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.008349s ]
  13. SELECT * FROM `article` WHERE `id` < 517498 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002751s ]
  14. SELECT * FROM `article` WHERE `id` < 517498 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002290s ]
  15. SELECT * FROM `article` WHERE `id` < 517498 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002428s ]
0.216827s