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【创新实验教学案例】固体的热胀冷缩

  • 2026-05-11 19:11:27
【创新实验教学案例】固体的热胀冷缩
【本文来源于公众号"科学新视界"】

地球公转

探究仪

教师简介

姚毅良

      小学科学一级教师，曾获南商教育基金“教学能手”、南海区优秀教师、南海区教育教学科研先进个人、南海区基础教育课程改革先进个人、南海区学生竞赛优秀辅导人员。

教具简介：地球公转探究仪

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结语

     课堂的精彩，从来不止于课本上的铅字；孩子的成长，永远藏在亲手实践的瞬间。创新教具把看不见的科学原理，变成了摸得着的趣味实验；把听来的知识结论，变成了一步步探索的惊喜过程。愿我们带着这些小而美的教具，陪着孩子们玩出科学思维，探得自然奥秘，让每一次动手，都成为他们爱上科学的理由，让每一堂课，都埋下未来探索者的梦想火种！

来源：科学新视界

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  1. CONNECT:[ UseTime:0.001176s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001610s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005218s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.004232s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001419s ]
  6. SELECT * FROM `set` [ RunTime:0.004728s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001620s ]
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  9. UPDATE `article` SET `lasttime` = 1778645493 WHERE `id` = 498838 [ RunTime:0.004806s ]
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  12. SELECT * FROM `article` WHERE `id` > 498838 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.007344s ]
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  14. SELECT * FROM `article` WHERE `id` < 498838 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.041395s ]
  15. SELECT * FROM `article` WHERE `id` < 498838 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.046900s ]
0.408637s