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同上一堂课0303四年级[数学]图形分类-三角形分类
同上一堂课0303四年级[数学]图形分类-三角形分类
同上一堂课【四年级】12/67
![同上一堂课0302四年级[音乐]摇篮曲-鳟鱼](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/3ae3e0c8ac8741e4934e66a059af4487~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=ZCbVgfL7t4j%2B7Lb0BLK28nU2Rc0%3D)
App30:02![同上一堂课0303四年级[数学]图形分类-三角形分类](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/d0b086425b0740b58c465bf039ededed~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=x0WJ6vVs11JvTPkBxwovJKNyLnQ%3D)
App29:45![同上一堂课0304四年级[英语]Unit 1 Lesson 5-6](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/17556c3d27b046c79b1c2f8016095e82~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=xzBb82EHI40ml5w638jhfyO123s%3D)
App29:43![同上一堂课0305四年级[语文]习作-语文园地](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/840e13ee5d0b4486a2cc8b251c796447~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=q%2FfHHeP3cL03YDN8Hyj2Vk6x%2FKg%3D)
App29:46![同上一堂课0306四年级[数学]三角形内角和](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/e3985bbcfb1c4d2390b17554821012a6~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=9gPJMIMSINSmPeF%2FmoyKSfKJumw%3D)
App29:42![同上一堂课0309四年级[体育]搏击操组合动作](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/f5bce67a300542a0976406a6637f949b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=rMWqTjUHlt0hEJafloAVJ3Gi7yQ%3D)
App29:09![同上一堂课0310四年级[语文]琥珀](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/08f78612aa114c72a674a6d145b0bc69~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=4W81qMwt7ST5qi2as%2Fm9uJ6B%2Fns%3D)
App28:46![同上一堂课0311四年级[英语]Unit 2 Lesson 1-2](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/fc8acec036e64d16ac9cdbcf5674e605~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=c6Ktvq%2BKKEEpVT0lM1NM8p7GuqU%3D)
App27:13![同上一堂课0312四年级[心理]暗示](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/71b2a7f40c2e4c79965c541668ff8877~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=nR3GP1biQKS72b13BItUPkAIXHs%3D)
App29:04![同上一堂课0313四年级[数学]三角形边的关系-四边形分类](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/da3017783a1e4c7a825adf162cce35c0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=w2U5BzYGRmawCfVfpQU8jsuXNCU%3D)
App29:17![同上一堂课0316四年级[语文]飞向蓝天的恐龙](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/6617e471ac1446eba7c206c639e1a574~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=J1yc1nPeroayuScoz68jfuQquiA%3D)
App28:10![同上一堂课0317四年级[体育]小足球球性球感练习](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/454f1f074e304b57b4865165959e96c2~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=2Fi0a6kjPnjJAY7oPZTKaLu7iN0%3D)
App28:37![同上一堂课0319四年级[数学]练习二-买文具](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/78576b7fbc1744ca849c3c75c75bbda2~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=%2BM4A18yEIlsjRWobBBnLwrSTA6I%3D)
App29:52![同上一堂课0320四年级[英语]Unit 2 Lesson 3-4](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/dfabee8f34ec4a4389448a279f4ae03c~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=imdcel6ZYTYK5W4Ce2oy6DN0VMU%3D)
App29:44![同上一堂课0323四年级[语文]纳米技术就在我们身边](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/a9d26f3bf5c3496faff44d01996eda98~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=%2FqJZvoEQTwMaDPQtmJqR1%2FS7Xd8%3D)
App29:46![同上一堂课0324四年级[数学]小数点搬家](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/bc6431f0ae394c7c936cad2cb17a7fb9~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=0PjaSluFXmy%2BmVOMNtO1Fsi6HlM%3D)
App29:47![同上一堂课0325四年级[科学]生活中的静电](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/f10e730990b74c94af7a0240c2eb02e5~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=cjmHt0lXNgbAAHHqIM9TqZl9rbc%3D)
App29:46![同上一堂课0326四年级[英语]Unit 2 Lesson 5-6](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/5d1c1fba3c014d378f009a2029f87b97~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=7PcerW7nOMhfqpDfjG69UKmGwYw%3D)
App29:46![同上一堂课0327四年级[数学]街心广场-包装](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/d1ede1fb7f29450dbe8adb9db6db6edd~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=XTC1b0bFL38k0lX%2FpNBea3Hk%2FNY%3D)
App29:45![同上一堂课0330四年级[数学]蚕丝-手拉手](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/2a99d57d18c84882ab81f10cee41c880~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=mIMLGa7u7Sne2ryziCfXtpvPb7s%3D)
App29:40![同上一堂课0331四年级[英语]Unit3 Lesson1-2](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/45175a3ffaf7469986da7d0f7197d6e0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=XCkSSKIhgBxMOrVRSjRf6Ys1dlc%3D)
App27:29![同上一堂课0401四年级[语文]千年梦圆在今朝-习作](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/33ccc02e29854edfb648e2cfce6a8595~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=k0%2B1J08aK01RBrCCj5V8eQjhTmY%3D)
App29:01![同上一堂课0402四年级[美术]北京的城楼](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/3ef42d130a7840feaa467345fd85137b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=ycrLCJXdnQfi4lyMWA8RWKhJua4%3D)
App27:05![同上一堂课0403四年级[语文]快乐读书吧](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/1b5960b88bf840e186fa317e2169f4f4~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=faQdwAhMSefYW%2BXHDxN9FXzbeIU%3D)
App29:19![同上一堂课0407四年级[语文]短诗三首-绿](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/a204624a22a640e097195f7386f1621a~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=8P1JBrKSc4zfiTfh7XbDb52sKpc%3D)
App29:44![同上一堂课0408四年级[英语]Unit 3 Lesson 3-4](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/d27351bca1244885893b2f0cfe852227~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=T2%2Bqq4IkIh6aXkNwJgsyUFvLl4w%3D)
App29:43![同上一堂课0409四年级[实践]十岁天空](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/39cd827c508440ec98f8a43882f6f5e1~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=pmbcgwWe%2BPqHIJg5AM%2B%2B13PoMoA%3D)
App29:45![同上一堂课0410四年级[语文]白桦-在天晴了的时候](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/fe3a25f1b245400da6c99800325385ae~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=wjUZPePAFrW5NnAT2mrmx1TPaPk%3D)
App29:44![同上一堂课0413四年级[数学]练习三-看一看](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/8e444cccac7a4229bdedbfd76735f096~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=P6BpbdAknhFu3lFhgmxnY%2Fb93Ps%3D)
App29:46![同上一堂课0414四年级[英语]Unit 4 Lesson 1-2](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/84c2aa10504c48c99c67babf8915f473~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=r5w9tZV%2B4Mnsp2MkioItYfCrn%2Bk%3D)
App29:46![同上一堂课0415四年级[语文]猫](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/225de9c8094f401396fb460ffb400868~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250208190800E16CA7BEF3242BC1322D&requestFrom=704&version_code=80402&x-expires=1770548880&x-signature=myKnP7TowfqQWDixt5NIapeuwRg%3D)
App29:46
