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复习课件 | 化说粽子——应用广泛的酸、碱、盐

  • 2026-04-02 21:25:06
复习课件 | 化说粽子——应用广泛的酸、碱、盐

前 言

以"物质的变化与转化""物质的多样性"学科大概念为统领,通过对教材内容的分析,构建"应用广泛的酸、碱、盐"概念层级,制订单元复习教学目标，以"粽"为主线设计教学流程并进行教学实践,结合学情在真实情境下引导学生运用酸、碱、盐相关知识解决问题，帮助学生形成认识物质的一般思路,引领学生挖掘化学学科的本质,实现核心素养的发展。

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      1. CONNECT:[ UseTime:0.000372s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
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      7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000675s ]
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      9. UPDATE `article` SET `lasttime` = 1775602671 WHERE `id` = 470771 [ RunTime:0.014879s ]
      10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000315s ]
      11. SELECT * FROM `article` WHERE `id` < 470771 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000458s ]
      12. SELECT * FROM `article` WHERE `id` > 470771 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002221s ]
      13. SELECT * FROM `article` WHERE `id` < 470771 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.008055s ]
      14. SELECT * FROM `article` WHERE `id` < 470771 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.033434s ]
      15. SELECT * FROM `article` WHERE `id` < 470771 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005888s ]
      0.139522s