五上第1单元

教科版五年级上册科学1.1《有关光的思考》微课（讲课视频）_腾讯视频.mp4
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教科版五年级上册科学1.2《光是怎样传播的》微课（讲课视频）_腾讯视频.mp4
![=video](/media/attachment/2024/09/%E6%95%99%E7%A7%91%E7%89%88%E4%BA%94%E5%B9%B4%E7%BA%A7%E4%B8%8A%E5%86%8C%E7%A7%91%E5%AD%A61.2%E5%85%89%E6%98%AF%E6%80%8E%E6%A0%B7%E4%BC%A0%E6%92%AD%E7%9A%84%E5%BE%AE%E8%AF%BE%E8%AE%B2%E8%AF%BE%E8%A7%86%E9%A2%91_%E8%85%BE%E8%AE%AF%E8%A7%86%E9%A2%91.mp4)

教科版五年级上册科学1.3《光的传播会遇到阻碍吗》微课（讲课视频）_腾讯视频.mp4
![=video](/media/attachment/2024/09/%E6%95%99%E7%A7%91%E7%89%88%E4%BA%94%E5%B9%B4%E7%BA%A7%E4%B8%8A%E5%86%8C%E7%A7%91%E5%AD%A61.3%E5%85%89%E7%9A%84%E4%BC%A0%E6%92%AD%E4%BC%9A%E9%81%87%E5%88%B0%E9%98%BB%E7%A2%8D%E5%90%97%E5%BE%AE%E8%AF%BE%E8%AE%B2%E8%AF%BE%E8%A7%86%E9%A2%91_%E8%85%BE%E8%AE%AF%E8%A7%86%E9%A2%91.mp4)