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基于上海新教材的新课教案——多边形的概念以及内角和

  • 2026-09-22 12:41:01
基于上海新教材的新课教案——多边形的概念以及内角和
1、基于上海新教材的教案。有些基本概念，就没有做教学设计。把基本概念罗列了一下。然后配了例题和练习。
2、当然如果遇到比较抽象的概念，还是需要讲究教学设计的。逐步引导学生理解这些个比较抽象的概念。
3、水一篇公众号而已。
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

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  1. CONNECT:[ UseTime:0.000533s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000967s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000514s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000345s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000657s ]
  6. SELECT * FROM `set` [ RunTime:0.000305s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000686s ]
  8. SELECT * FROM `article` WHERE `id` = 515985 LIMIT 1 [ RunTime:0.000342s ]
  9. UPDATE `article` SET `lasttime` = 1790146781 WHERE `id` = 515985 [ RunTime:0.001597s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000353s ]
  11. SELECT * FROM `article` WHERE `id` < 515985 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000462s ]
  12. SELECT * FROM `article` WHERE `id` > 515985 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000409s ]
  13. SELECT * FROM `article` WHERE `id` < 515985 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000928s ]
  14. SELECT * FROM `article` WHERE `id` < 515985 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000865s ]
  15. SELECT * FROM `article` WHERE `id` < 515985 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001105s ]
0.086066s