第17章 我不服气 天赋系男神
而1班教室外,走廊尽头的小休息间里,吕炳春正在给付声答疑:“这里带入方程式,就能解得……”
门被人猛地推开,俞启瑞抱著本子风风火火地闯了进来。见付声还在,他也只能强忍不耐,抓耳挠腮地等在旁边,心里巴望著付声赶紧滚。
好不容易,才等付声弄明白了离开。他立刻凑上去:
“吕老师,这道题怎么解啊?”
吕炳春的第一思路,自然是正攻解法。他拿起一张草稿纸,一边写,一边细致地讲解著每一个步骤:“所以,用均值不等式可以知道……”
了快十分钟,俞启瑞总算是听明白了,他一拍大腿,恍然大悟道:“原来是这样!唉,还得是吕老师您讲得清楚!”
“怎么了?”吕炳春有些奇怪地问。
“嗨,別提了,”俞启瑞立刻开始打起了小报告,“刚才我也问了洛北来著。结果他嘰里咕嚕的,不知道讲了些什么。就非要用什么特殊值,钻题目的空子。我一听就不对劲,就赶紧过来问您了。”
“特殊值?”吕炳春更好奇了,“洛北是怎么讲的?你给我说说。”
俞启瑞见老吕问了,乐得马上把那道选择题,还有洛北的“特殊值法”添油加醋地说了一遍,重点强调洛北“態度不好”、“解法取巧”。
吕炳春听完,反应却出乎俞启瑞意料:“哦?这个法子,確实很聪明。”
“啊?”俞启瑞傻眼了。
“这是利用了『特殊性必然蕴含於一般性之中』的逻辑原理。”吕炳春解释道,“对於这道题,用特殊值法,的確比常规解法要快得多,也更不容易出错。是个好方法。”
“可……可这不是投机取巧吗?”俞启瑞依旧不服气,“要是知识点把握不牢,这道题会了,换个问法,刚好没法用特殊值的时候,那不就抓瞎了?”
“你说的也有道理。”吕炳春点了点头,话锋却一转,“但你要知道,高考,是一场限定时间决胜负的考试。它不仅仅看你会了多少,更看你做对了多少。如果有办法能更快、更准地把题目做出来,那就不应该把它批判成是歪门邪道。”
“不过,”吕炳春意有所指地看著俞启瑞,“你刚才的担忧也没错。如果基础没有打牢固,就沉迷於各种奇技淫巧,那只会分散注意力,迷惑心智,反而貽害无穷。”
俞启瑞完全没听出吕炳春是在点拨他:他的数学成绩,常年在115分上下,属於那种问题多、勤提问,看起来很努力,但实际上知识点掌握得一点也不牢的学生。
他高兴起来,觉得老吕这才说得像人话,自己明明就占理嘛:“就是嘛!我就说洛北讲得不对,他还衝我发火!”
吕炳春在心里默默地嘆了口气:洛北的数学,常年稳定在140分以上,你一个110上下浮动的,跟人家有可比性吗?
但他也不好太打击学生的积极性,只是温和地提醒道:“以后问其他同学问题,也要注意分寸。大家现在时间都很宝贵,不要太打扰別人了。”
俞启瑞嘴上应著,心里却觉得老吕其实还在偏袒洛北,所以对后者的劝告,那是一个耳朵进,一个耳朵出。
他偃旗息鼓地回到座位上,洛北连眼皮都没抬一下,对他刚才的这场风波,毫不在意。
他要做的,就只有刷级。
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……
光阴似箭,閒话休题。
本书首发101??????.??????,提供给你无错章节,无乱序章节的阅读体验
时间很快来到了五月中旬,高考前的最后一次三模,如期而至。同样是七市联考,这次的难度参照往年惯例,显得分外慈眉善目。目的,就是提振考生信心,別把孩子嚇得不敢高考了。
试卷,果然很简单。就连俞启瑞这等懂哥从考场出来,都连连拍著胸脯,大呼“哥这把稳了,那必定衝上六百二啊”。
不过,年级排名出来的时候,某个高悬在榜首的名字,再次让整个高三年级为之侧目。
洛北,总分703,年级第一。
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