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2026年新大象版小学科学3年级下册教案 课件 课课练

  • 2026-03-29 10:57:26
2026年新大象版小学科学3年级下册教案 课件 课课练

1—6年级下册电子教材

体验单元☞藕是根还是茎

☞教学设计（可下载）

1.1《磁铁有两级》

☞教案   ☞课件  ☞课课练

1.2《两级指南北》

☞教案   ☞课件  ☞课课练

1.3《做个指南针》

☞教案   ☞课件  ☞课课练

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▍综合整理：小学科学网
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  1. CONNECT:[ UseTime:0.000859s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000728s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000327s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000247s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000498s ]
  6. SELECT * FROM `set` [ RunTime:0.000236s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000552s ]
  8. SELECT * FROM `article` WHERE `id` = 468817 LIMIT 1 [ RunTime:0.000390s ]
  9. UPDATE `article` SET `lasttime` = 1775927942 WHERE `id` = 468817 [ RunTime:0.001093s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000232s ]
  11. SELECT * FROM `article` WHERE `id` < 468817 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000852s ]
  12. SELECT * FROM `article` WHERE `id` > 468817 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000453s ]
  13. SELECT * FROM `article` WHERE `id` < 468817 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000679s ]
  14. SELECT * FROM `article` WHERE `id` < 468817 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000879s ]
  15. SELECT * FROM `article` WHERE `id` < 468817 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001622s ]
0.169697s