练习,练习,再练习!

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最近帮助一些学生准备AP物理的考试,看了一本复习指导书,上面列出了想得5分(满分)必须做到的5点:量纲分析、向量、图形、牛顿运动定律和练习,练习,再练习!复习指导书、教科书,就算你看上几十遍也帮不了你。

有很多人认为,做不做练习,或者做多做少与考试成绩无关这完全是睁着眼睛说瞎话。考试的形式不外乎有笔试、口试、手试,笔试就是把一些题目印在纸上让你答,如果没有事前练习,想要通过,只能靠作弊;口试,如果没有充分的准备,就算你再灵光,也不会有好成绩;手试,任何操作考试,如比武大会,没有事前的刻苦训练,就算你把所有秘诀背得滚瓜烂熟,落拜是唯一的结局。

遗憾的是,很多老师和学生都不明白这一点。一个六年级的数学老师,竟然这样为其不作为来狡辩:we are lazy, but we are nice. 我把这几年遇到的反面事例列举几个,看看到底要不要做练习。

K的母亲最近给我打电话,说K的成绩比全班的平均成绩要低十几分,问我为什么。我说她从来不做练习,无论是学校老师布置的,还是我留的。她怨我没有早告诉她,其实现在还不晚,没有教训,孩子是不会主动去做练习的。

E4年级就能跟我上7年级的课,7年级时考上UTS(百里挑一),10年级时以满分通过AP微积分的考试,很不简单吧?可是,整个中学,他参加了所有的数学竞赛,却从来没有一次榜上题名的。母亲以为是孩子笨,其实是孩子的学习习惯使然。我让他做练习,他答应得好好的,可下次课时却又以各种理由推脱,母亲也说这个忙那个忙。给他讲解解题方法时,我还没有讲完,他就上网找出了解答,看一眼,说是会了;可下次遇到同样问题时,他还是做不出来。就这样,一棵好好的苗子,毁了。

还有一个女学生L,也是UTS的,数年前在我这里上了两个月的课,我对她的印像却很深:每次上课,只把我讲义上的答案一抄,本次课就算完成了;至于怎么来的,她才懒得知道。她以后的发展如何,我不得而知;只是感叹,她上UTS,浪费钱了。

再有一个更厉害的,名字也以K开头,8年级时考上TOPS9年级就去UT听课挣学分!竞赛时,提前几天,做几道以往的考题,匆匆上阵,战绩却从没辉煌过。我给她上了三个月的课,却从来没有看到她做过的任何一道练习题。再后来,据其同校学生说,成绩平平。

我从不怀疑有天生聪明的人,他们也许不做练习也能成就辉煌;B应该算是这种学生之一。78年级时,我给他布置的作业,他还是会做的,以后就不做了;家长还会以活动太多跟我解释。9年级时,他已经上完了多元微积分;10年级时,COMC得了地区第一名;12年级时,AMC 12的第二题都做错了,那只不过是绝对值的计算而已。

5月的APIB考试就要到了,尽管各校都已在3月举行了模拟考试,若不抓紧做上十几套练习题,你就等着fail吧!

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