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同上一堂课0401三年级[数学]有多重-1吨有多重
同上一堂课0401三年级[数学]有多重-1吨有多重
同上一堂课【三年级】33/68
![同上一堂课0331三年级[语文]快乐读书吧](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/13f5a8cba4d0472e87bc3ec5da83d8f1~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=D9PRWAox2GyTVy%2BT0sGT1C3r%2FJU%3D)
App28:34![同上一堂课0401三年级[数学]有多重-1吨有多重](http://p3-sign.bdxiguaimg.com/tos-cn-p-0026/f9019d30210405a1a3fc6ce3fa8c016f~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=fEf9rHJsMKtl6LetAAwLgyXgNE8%3D)
App29:31![同上一堂课0402三年级[语文]古诗三首](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/a8e77ca19f7b4127b43b09b90cdfba91~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=Sx6JkpEzJewtfH6l01Gxb2tUYWo%3D)
App28:56![同上一堂课0403三年级[数学]避开恶猫的方法](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/40ce3bd3fa234b5d8241c4f98b8e1e09~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=BXgXfvJWizioTPj40svp2WPqclQ%3D)
App28:37![同上一堂课0407三年级[英语]Unit 3 Lesson 3-4](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/f35feb81920c4298a9074128a7b15769~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=5UXs4qC0STBBNZp%2BpDEKNPgKg8g%3D)
App29:43![同上一堂课0408三年级[语文]纸的发明](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/999f178e343744daa7c8910747982a1a~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=O1TEJ4ZxZnjVz7Vo%2FdYjC8c5bJU%3D)
App29:21![同上一堂课0409三年级[数学]什么是面积-面积单位](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/8bf91038ee854398a5a7412376cdfd6c~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=c1fd7xf1FEpi1pk%2F7OW9US8O950%3D)
App29:40![同上一堂课0410三年级[语文]赵州桥](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/dd0cec5d0b8d4a5e85dc6b112ec0f91d~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=b%2Fne21dLFv5R2D6PXjvWB1SkE1M%3D)
App29:43![同上一堂课0413三年级[英语]Unit 3 Lesson 5-6](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/e68cddef4be645398cbfef3727ef6a5d~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=mQkol8BOD%2BrslFjeEcIsr%2FXF2Ok%3D)
App29:45![同上一堂课0414三年级[语文]画-综合性学习](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/055ae72266d64deb80f40bf971acb7a9~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=LVhczYA60HcEMxBdjBX%2B3kqVtoY%3D)
App29:46![同上一堂课0415三年级[数学]长方形的面积](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/52de395d1f594fcb9ba684ce4777649e~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=eZg%2Fn46%2FNrezWseJ4Xdhl9Ktz0o%3D)
App29:46![同上一堂课0416三年级[音乐]我是小音乐家-进行曲](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/300fe7de392c487b93b487e913217912~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=ARshiu%2FIoncfJT4gC2%2BoENUCgxo%3D)
App29:45![同上一堂课0417三年级[语文]花钟](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/fca28f6fdfad4bbfa0ac60961fdb7579~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=hfpeiYCugSaMXH99fCPWt3gh8H4%3D)
App29:45![同上一堂课0420三年级[英语]Unit 4 Lesson 1-2](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/ea351a3236d542d2b39b17a8f6a70ed1~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=VHOUW54T%2Bp4zlEyJqKUk%2B57%2FfPQ%3D)
App29:03![同上一堂课0421三年级[语文]蜜蜂](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/325567906e66434996ab42bd0c61c5dd~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=PaeD2lxKdCGBMY6GlWHtCoN6f1Y%3D)
App29:19![同上一堂课0422三年级[数学]面积单位换算-长方形面积与周长](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/be4daef782eb471481e3bd513cb7bdd4~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=blRYk1kEQMNfDHum2N%2Bx0v2DyjI%3D)
App29:06![同上一堂课0423三年级[数学]游园-有趣的推理](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/9a055cb1964e452fa229afea1304b0ce~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=nmLvavOhPn1PvOq%2FZJMFvvHWn40%3D)
App29:34![同上一堂课0424三年级[语文]小虾-习作](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/2d61e41f7d674bf2b0175de3e17aab6d~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=qXKkaIGDXVJWJ9lM0Xxv9JEKg1o%3D)
App28:36![同上一堂课0426三年级[语文]宇宙的另一边](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/4a475ad5be354e38858984ca3266a451~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=3CDLvtCsClaevjxKMRNOW5Y8eQU%3D)
App29:24![同上一堂课0427三年级[科学]点亮小灯泡-简单电路](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/5526120124cc40abb1aae992315d642f~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=iRTunQBI%2B%2BuywzDu648Dyvz3x6I%3D)
App29:59![同上一堂课0428三年级[语文]我变成了一棵树](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/041f58a8c3a7406fbe05e25b191b9ce7~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=y93o%2BzPVKkhsYk8ywoO0kQmbvX8%3D)
App29:58![同上一堂课0429三年级[数学]分一分](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/f2f537253afd4a77b433b79ccad802c7~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=vxD6cdW0MXHvAclxmsMi8exYqUY%3D)
App29:52![同上一堂课0430三年级[英语]U4L3-U5L1](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/7d6fc0d8bb684ff7a6890da2842c26a5~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=9h00HkhzVj78lNti4T0a9CuKyH0%3D)
App30:00![同上一堂课0506三年级[语文]童年的水墨画-我不能失信](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/74d4d2f518ad410f9442398e78d9b8b0~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=0yS6azJ6FcVU9uQD7Afn2wn%2FEjo%3D)
App29:32![同上一堂课0507三年级[美术]多姿多彩的塔](http://p3-sign.bdxiguaimg.com/tos-cn-p-0026/e6ff55ddb1653047557a2cd84da16f89~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=SiJKTd4jzMkbIoy2WMlV2WhSqA4%3D)
App29:25![同上一堂课0508三年级[语文]剃头大师](http://p26-sign.bdxiguaimg.com/tos-cn-p-0026/5540bec16b0e20ac5741bb8085fae026~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=2bOfm5nkzhWgAhbi5Zr%2FMff53bk%3D)
App29:59![同上一堂课0509三年级[英语]Unit 5 Lesson 2-3](http://p3-sign.bdxiguaimg.com/tos-cn-p-0026/8940744df5cea7a86ce508b2143f3291~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=q3SWdNhit5OOkr6ZJLn%2BhdYKHZc%3D)
App29:56![同上一堂课0511三年级[语文]肥皂泡](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/337f6ce1468140cfb43c6511d55ce203~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=wBCzc%2Bx0k%2BmmTgqHHU503rVjHpM%3D)
App29:18![同上一堂课0512三年级[英语]Unit 6 Lesson 1-2](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/ad822d377ba14132ba26664c3b3109f5~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=PxSangrMU%2Btj9ZrOgV6E5D%2B8osQ%3D)
App28:07![同上一堂课0513三年级[数学]比大小-吃西瓜](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/e829ac5db51d417d919b3b74333a1da3~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=OQkfczsRlA92m1O4bCWW3%2B0zbe8%3D)
App29:09![同上一堂课0514三年级[实践]诚实守信劳动者交流会](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/b5e6fa99356b4beeada9ac4d66b6ab25~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=20250121091756EA7825600FF250815198&requestFrom=704&version_code=80402&x-expires=1768958277&x-signature=aXXoNFgDORZYgW%2FsUIiRiXuLqg4%3D)
App29:44打开App观看
