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小学数学《用橡皮筋驱动小车》优质课件分享

  • 2026-09-18 10:13:32
小学数学《用橡皮筋驱动小车》优质课件分享
⚙️小学科学互动课件｜运动和力
▫️✨课件亮点
动态力学模拟演示，搭配拖拽闯关、情景探究互动，环节层层递进，素材齐全无需额外搜集整理
▫️👩‍🏫教师优势
省去教具筹备与调试麻烦，教学逻辑完整清晰，一键投屏即可授课，评优课也能直接套用
▫️👧学生优势
化抽象原理为直观画面，主动参与探究，轻松理解力与运动的关联，强化科学探究思维
#小学科学 #科学课件 #运动和力课件 #教师备课好物 #小学科学公开课 #科学教学资源
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高二秋季开学第一课班会课件PPT课件:启航高二,把握未来

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000924s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001127s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000451s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000322s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000568s ]
  6. SELECT * FROM `set` [ RunTime:0.000273s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000719s ]
  8. SELECT * FROM `article` WHERE `id` = 518774 LIMIT 1 [ RunTime:0.000363s ]
  9. UPDATE `article` SET `lasttime` = 1789937358 WHERE `id` = 518774 [ RunTime:0.001390s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000330s ]
  11. SELECT * FROM `article` WHERE `id` < 518774 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000394s ]
  12. SELECT * FROM `article` WHERE `id` > 518774 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000378s ]
  13. SELECT * FROM `article` WHERE `id` < 518774 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000462s ]
  14. SELECT * FROM `article` WHERE `id` < 518774 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000604s ]
  15. SELECT * FROM `article` WHERE `id` < 518774 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000850s ]
0.086349s