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化学教案简易版1.1物质的变化和性质

  • 2026-08-10 09:38:43
化学教案简易版1.1物质的变化和性质

化学教案简易版📝1.1物质的变化和性质

备课打卡📝九年级化学第一课
1.1《物质的变化和性质》两个课时教案整理完毕
易抄写版本一正一反两页，OK吧？
欢迎评论区留言！[萌萌哒R][萌萌哒R]

教学设计思路整理：
▪️情景导入：生活里土豆发霉、橘子腐烂、水结冰，用日常现象拉近距离，引发学生思考
▪️实验探究：水的沸腾、胆矾熔化等4个演示实验，引导学生观察对比，区分物理变化和化学变化
▪️重点突破：辨析核心区别——有没有新物质生成！纠正误区：发光放热不一定是化学变化
▪️课堂小结+练习巩固，加深知识点记忆

刚接触化学的初中生好奇心很强，多做演示实验调动课堂氛围，孩子们听课积极性直接拉满💯

小李老师慢慢整理全套九年级化学教案，备课教师姐妹可以蹲蹲～
河南,1小时前,
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【公开课一等奖】选必上《五石之瓠》教学课件+教学设计

2026年九上数学【人教】精品课件+教学设计+知识清单+七大考点+八大易错+易错训练 | 挖空版+教师版(电子版可打印)

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  1. CONNECT:[ UseTime:0.001005s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001628s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000735s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000662s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001335s ]
  6. SELECT * FROM `set` [ RunTime:0.000603s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001614s ]
  8. SELECT * FROM `article` WHERE `id` = 523882 LIMIT 1 [ RunTime:0.005354s ]
  9. UPDATE `article` SET `lasttime` = 1786341634 WHERE `id` = 523882 [ RunTime:0.006987s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000663s ]
  11. SELECT * FROM `article` WHERE `id` < 523882 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001120s ]
  12. SELECT * FROM `article` WHERE `id` > 523882 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000982s ]
  13. SELECT * FROM `article` WHERE `id` < 523882 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001743s ]
  14. SELECT * FROM `article` WHERE `id` < 523882 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001534s ]
  15. SELECT * FROM `article` WHERE `id` < 523882 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006839s ]
0.193913s