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五年级小朋友讲解一道数学拓展题关于用方程思想解题的方法。
中小学数学思维教学667/1017
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![流泪的《彝族舞曲》！ 十多年过去了，咱们祖国山区的发展日新月异！但聪老师还是会时常想起那天傍晚环绕在身边的孩子们！相信现在他们一定都已长大成人，开启了属于自己的多彩人生！再次感谢所有为山区孩子们送出爱心的乐迷朋友们！[聪老师公益直播第三集]#琵琶 #彝族舞曲 #公益 #公益正能量](http://p3-sign.bdxiguaimg.com/tos-cn-i-dy/ed13533d00434b7ba63e527f969ccb5a~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=2024111518195038FC1C3368282680E14C&requestFrom=101&x-expires=1763201991&x-signature=G6ryv1vqqKjK8MPcK4L1%2FfrZTzI%3D)
