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播放：15 时间：2024-06-19简介： -
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![北师大数学八上《3.3 轴对称与坐标变化》[董老师]【市一等奖】优质课](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F3f1733dfc163bba4e82b6819d40b232c8b04de76.jpg%40672w_378h_1c_%21web-search-common-cover)
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![北师大数学八上《3.1 确定位置》[陶老师]【市一等奖】优质课](//imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F69789b90c1696de5557c5c440fcfb5e5483a2ffb.jpg%40672w_378h_1c_%21web-search-common-cover)
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![北师大数学八上《3.3 轴对称与坐标变化》[董老师]【市一等奖】优质课](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F3f1733dfc163bba4e82b6819d40b232c8b04de76.jpg%40672w_378h_1c_%21web-search-common-cover)
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