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教科版五年级科学妙用滑轮课件教案逐字稿!

  • 2026-11-07 20:21:33
教科版五年级科学妙用滑轮课件教案逐字稿!

教科版五年级科学妙用滑轮课件教案逐字稿！

备课教科版五年级科学《妙用滑轮》的老师看过来！整套资料包含详细教学设计、配套课件以及课堂逐字稿。

从旗杆升旗引出定滑轮，再到起重机动滑轮与滑轮组探究，实验步骤与板书设计一应俱全。 实验部分设计清晰，钩码平衡与橡皮筋对比数据直接可用，帮学生轻松理清“省力”与“改变用力方向”的思维难点。

课件排版清爽，讲课逻辑层层递进，拿来就能直接上手上公开课，讲台备课真的省心不少！ #妙用滑轮 #五年级科学 #小学科学 #教科版科学 #工具与技术 #定滑轮 #动滑轮 #滑轮组 #科学课件 #五上教科版科学

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  1. CONNECT:[ UseTime:0.000581s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001003s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000489s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000326s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000533s ]
  6. SELECT * FROM `set` [ RunTime:0.000281s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000615s ]
  8. SELECT * FROM `article` WHERE `id` = 537673 LIMIT 1 [ RunTime:0.000372s ]
  9. UPDATE `article` SET `lasttime` = 1794136936 WHERE `id` = 537673 [ RunTime:0.001448s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000409s ]
  11. SELECT * FROM `article` WHERE `id` < 537673 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000500s ]
  12. SELECT * FROM `article` WHERE `id` > 537673 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000405s ]
  13. SELECT * FROM `article` WHERE `id` < 537673 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000587s ]
  14. SELECT * FROM `article` WHERE `id` < 537673 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000696s ]
  15. SELECT * FROM `article` WHERE `id` < 537673 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000682s ]
0.103666s