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幼儿园科学之《好玩的磁铁》 PPT可编辑

  • 2026-11-05 15:10:46
幼儿园科学之《好玩的磁铁》 PPT可编辑

幼儿园科学之《好玩的磁铁》 PPT可编辑

幼儿园科学之《好玩的磁铁》 PPT 21页 动态可编辑 带教案 逐字稿 说课稿
教学目标
1.认知目标：认识常见的磁铁；知道磁铁能吸住铁制品；初步感知磁铁有南北两极，同极相斥、异极相吸。
2.能力目标：能通过动手操作，辨别哪些物品是铁制品；体验磁力的穿透性；能在教室里主动寻找含有磁铁或能被磁铁吸引的物品。
3.情感目标：体验科学探索的乐趣，对磁铁的神奇力量产生浓厚的兴趣；愿意与同伴分享自己的发现。#幼儿园 #幼儿园老师 #幼儿园课件 #幼儿园PPT #磁铁
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【临床指南|PPT】床旁超声指导新生儿经外周静脉置入中心静脉穿刺术临床实践指南(2026)

基本 文件 流程 错误 SQL 调试
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  3. 缓存信息 : 0 reads,0 writes
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  1. CONNECT:[ UseTime:0.000594s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000864s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000468s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000330s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000580s ]
  6. SELECT * FROM `set` [ RunTime:0.000287s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000639s ]
  8. SELECT * FROM `article` WHERE `id` = 509990 LIMIT 1 [ RunTime:0.000342s ]
  9. UPDATE `article` SET `lasttime` = 1793898196 WHERE `id` = 509990 [ RunTime:0.001166s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000319s ]
  11. SELECT * FROM `article` WHERE `id` < 509990 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000424s ]
  12. SELECT * FROM `article` WHERE `id` > 509990 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000448s ]
  13. SELECT * FROM `article` WHERE `id` < 509990 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000462s ]
  14. SELECT * FROM `article` WHERE `id` < 509990 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000585s ]
  15. SELECT * FROM `article` WHERE `id` < 509990 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000529s ]
0.105119s