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【新人教版】课题2氧气(课件+视频+教案+分层作业+导学案+同步讲义),备课素材.

  • 2026-09-19 07:48:13
【新人教版】课题2氧气(课件+视频+教案+分层作业+导学案+同步讲义),备课素材.

您好！我是“化学日记520”，作为一名教育工作者，一直在探索如何让孩子学好化学。经过几十年的教育教学实践，我积累了一些经验，现在就来和大家分享一下。请关注我，一起学习，共同进步！

氧气的检验：
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木炭分别在空气和氧气中燃烧：
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免费下载的备课资料如下：
【新人教版】九年级化学第二单元空气和氧气 ，大单元整体设计
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大班科学优质课教案及教学反思《转动的物体》

基本 文件 流程 错误 SQL 调试
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0.102216s