![]()
{"ops":[{"insert":"背景：周末老师布置了这套卷子，扬言最后一题最后一问不叫我们写，写了也写不出来，2h做出来就是胜利。本人初见党，给他做出来了，并在空间里炫耀了一番（划掉）（可惜没有计时）。今天老师评讲这套卷子，有几题讲得太不严谨了令我血压升高。我深感高中理科教学的局限性，想在这里同感兴趣的人分享一下自己对这套卷子几道自认为有意思的题的思考与感想（当然我没有批判我们老师的意思，毕竟学生在成长中的认知总是分阶段的）。\n\n（不过我高三了，现在已经1月，没有时间用word公式打出来，只能采用晚自习手写+回家拍照码专栏的形式，字丑什么的还请多多谅解，甚至连这个背景都写的很草率（划掉\n\n第7题：我的做法跟参考答案一样，用的是正（拉）弦（密）定理，就是设的角不一样（拉密定理的介绍可以看BV1yZ4y1x7ds的p4，跟正弦定理差不多好理解）\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/7a7ab561398df4ddadd86feb4bcfc307e2f8ff0e.jpg","width":2079,"height":878,"size":965697,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/d0ce026e46b5d6e68dfcae8f05fa9e491343ede2.jpg","width":1081,"height":390,"size":229490,"status":"loaded"}}},{"insert":"第8题C中电场强度两个分量易知是相等的，如何严谨证明两个分量等大反向？可以用几何法加目测或向量法研究方向向量。（可能书写上有些不严谨）\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/29e57196c0b56f7381aac9d1cc6a2ac0f41f36d5.jpg","width":2080,"height":617,"size":656922,"status":"loaded"}}},{"insert":"\n\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/560ad5aa755309739af90c91f30e3d97e95a7c6c.jpg","width":1386,"height":1040,"size":1008170,"status":"loaded"}}},{"insert":"第16题（3）中重力功和摩擦力功在下滑过程中都在增大，根据高中生特有的朴素理科直觉可知它在某一瞬间速度应有最大值，接下来就是用数列求通项公式的知识来计算了（原谅我参考答案的过程看不懂\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/1a56840c8032c058200aa41838beee3efb104734.jpg","width":1386,"height":1040,"size":1037300,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/3205c729f222ed85908f091fc899dc020e0fec51.jpg","width":862,"height":285,"size":141505,"status":"loaded"}}},{"insert":"（真 迹）\n\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/3bd65e28933711bdc264be854b63ab231ceb9d46.jpg","width":1081,"height":581,"size":406564,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/24c3d0d5142b34ffdb85cdccea9ae8d1079f579e.jpg","width":1386,"height":1040,"size":974372,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b2.sanwen.net/b_article/21cfaaebe5614308f736aebf8e9188e4b9b8c291.jpg","width":1414,"height":2155,"size":1444651,"status":"loaded"}}},{"insert":"感谢阅读\n"}]}
标签：
