msansiily:&quTimes New Roman&qu">数学
&quTimes New Roman&qu">状元谈数学学习方法:精练多练出成果
msansiily:&quTimes New Roman&qu"> &quTimes New Roman&qu">年新疆理科状元 林佳瑞
msansiily:&quTimes New Roman&qu"> 学习数学最重要的一点就是:新旧结合、注重通法、记忆结论、抠透细节。
msansiily:&quTimes New Roman&qu"> 学了新知识,回头看看旧的东西,你会发现可以用新知识解决许多旧问题,同样只要你善于联系,旧知识照样可以解决新问题。例如:用导数解决函数单调性问题,向量解决立体几何问题,数列证明不等式,当然函数也可解决不等式。因此,知识的结合是很重要的。就说数形结合吧,数没有形直观,形没有数逻辑性强,二者刚好互补。同样,结合意味着化归、转化,如:非等比,等差数列转化为等比,等差数列,甚至各项大于0msansiily:&quTimes New Roman&qu">的等比数列取对数也可化为等差数列。所有公式中,万能公式沟通了三角与实数(只需令&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">),这不也是一种结合吗?再比如:求y=x+4/x&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">的值域,我们可以分x&0&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">,x&0&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">,应用均值不等式,但若你令xanA&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">,则ytanA+cotA)=4/sin2Amssciiily:&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">,其值域呼之欲出啊!对结论的记忆不用刻意去记,只要你做一个有心人,平时做题时注意积累就好,利用结论可以迅速解决选择和填空,还可以开阔你的思路呢!msansiily:&quTimes New Roman&qu;color:witcoron:none;
msansiily:&quTimes New Roman&qu"> 知识盲点:
msansiily:&quTimes New Roman&qu"> 1.&quTimes New Roman&qu">空集的特殊性;
msansiily:&quTimes New Roman&qu"> &quTimes New Roman&qu">不等式系数的不确定性;
msansiily:&quTimes New Roman&qu"> &quTimes New Roman&qu">消元过程扩大解集;
msansiily:&quTimes New Roman&qu"> 4.&quTimes New Roman&qu">均值不等式应用中忽视取等条件;
msansiily:&quTimes New Roman&qu"> 5.&quTimes New Roman&qu">区分最值与极值;
msansiily:&quTimes New Roman&qu"> 6.&quTimes New Roman&qu">等比数列小心&quTimes New Roman&qu">q宋体;mssciiily:&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">=1的情况;
msansiily:&quTimes New Roman&qu"> 7.&quTimes New Roman&qu">a//b即a=xb(b≠&quTimes New Roman&qu">0)宋体;mssciiily:&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">;
msansiily:&quTimes New Roman&qu"> 8.&quTimes New Roman&qu">做题中任何题都应优先定义域;
msansiily:&quTimes New Roman&qu"> 9.&quTimes New Roman&qu">轨迹及方程问题中注意各轨迹方程的定义,如:圆要求D2+E2-4F>0等;
msansiily:&quTimes New Roman&qu"> 10.&quTimes New Roman&qu">两圆位置关系与半径的联系。
msansiily:&quTimes New Roman&qu"> 易错点:
msansiily:&quTimes New Roman&qu"> 1.&quTimes New Roman&qu">忽略定义域;
msansiily:&quTimes New Roman&qu"> &quTimes New Roman&qu">分类讨论做不到“&quTimes New Roman&qu">不重不漏”宋体;mssciiily:&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">;
msansiily:&quTimes New Roman&qu"> &quTimes New Roman&qu">忽略了定理,定义的限定条件;
msansiily:&quTimes New Roman&qu"> 4.&quTimes New Roman&qu">向量法求二面角,对其是否大于90&quTimes New Roman&qu">度不清楚;
msansiily:&quTimes New Roman&qu"> 5.&quTimes New Roman&qu">遗漏一些特殊情况,如:空集,求数列通项忽略对n=1&quTimes New Roman&qu">的验证,忽略导数不存在的点及斜率不存在的情况等。
msansiily:&quTimes New Roman&qu"> &quTimes New Roman&qu">年云南理科状元 邓侃
msansiily:&quTimes New Roman&qu"> 数学是思维的体操。且不谈“&quTimes New Roman&qu">粒子之小,火箭之速,化工之巧,地球之变,生物之谜,日用之繁”&quTimes New Roman&qu">,处处都闪烁应用数学的光芒,高度抽象的纯粹数学,也有其深刻而动人的美丽,堪称艰深难懂而璀璨美丽的艺术。恰如Russell&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">所说:“msansiily:&quTimes New Roman&qu">公正而论,数学不仅拥有真理,而且拥有至高无上的美——msansiily:&quTimes New Roman&qu">一种冷峻严肃的美,如同一尊雕塑。”msansiily:&quTimes New Roman&qu">学习数学不仅为了应试解题,更要培养思考问题的逻辑性与严密性,提升思维品质。
msansiily:&quTimes New Roman&qu"> 学好数学关键在于思考。看似枯燥无味的数学公式,细心品味其内涵与外延,也能触摸到深刻的美丽。数学教材要通读,从最基本的概念出发,一步步推导出美丽的结论,前后勾连,交织成严密知识网络。记忆公式要学会举一反三,注意不同条件下结论的变化,掌握公式的推广和特例,衍生出解决问题的有效模式。
msansiily:&quTimes New Roman&qu"> 平时做题时,不要满足于记忆解答,要体会每一步的“msansiily:&quTimes New Roman&qu">动机”&quTimes New Roman&qu">,才算完成了思维训练。只记住步骤而不思索动机,不像在看书,倒像在校稿。习题要精做,关键在于赋予每道题应有的思维分量。习题要精选精做,每做一题,要归纳解题的入口和关键步骤,尝试着改变条件和结论,探索一类题的解法。
msansiily:&quTimes New Roman&qu"> 各类考试有严格的时间、空间限制,要做到快速、准确地解题,必须采取一定解题策略,在“msansiily:&quTimes New Roman&qu">理解题目→&quTimes New Roman&qu">拟定方案→宋体;mssciiily:&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">执行方案→msansiily:&quTimes New Roman&qu">回顾”&quTimes New Roman&qu">四个环节里节约时间,提高准确率,争取拿到所有应得的分数。
msansiily:&quTimes New Roman&qu"> 高考数学的题型颇有规律可循,平时多进行定时、定量的解题训练,才能突破弱项,提升速度,找到解题的感觉。
msansiily:&quTimes New Roman&qu"> 数学一直是我的强项,可惜高考时由于太过粗心没考出应有水平,我很遗憾。但是,学弟学妹们,现在希望还掌握在你们手中,不管现在成绩如何,还有时间做出调整。只要把握好,高分甚至满分数学和每个人都是等距离的。
msansiily:&quTimes New Roman&qu"> 题海战术
msansiily:&quTimes New Roman&qu"> 我个人还是比较支持题海战术的。数学考试范围广,题形多。只有多练才能达到多见识的目的,靠典型题目做少量题型得到高分是非常难的。当然,不能盲目做题,要精选题目,而且做完后要总结规律。最好能把做错题目抄录下来,以便最后巩固。
msansiily:&quTimes New Roman&qu"> 套题训练
msansiily:&quTimes New Roman&qu"> 数学的成绩是练出来的,而且要用符合高考的标准来练,而套题是最符合要求的。我练套题是捏准时间,然后严格打分,通过每星期两三套那样的练下来,找出自己的薄弱知识点,然后重点击破。就这样节节提高,到最后胸有成竹。小建议:套题训练最好留到二轮或者三轮复习时。
msansiily:&quTimes New Roman&qu"> 不要马虎
msansiily:&quTimes New Roman&qu"> 高考中我就因为马虎而白白丢分,很是遗憾。数学考试中经常听到同学抱怨说:“msansiily:&quTimes New Roman&qu">怎么又马虎粗心了!”&quTimes New Roman&qu">或是“宋体;mssciiily:&quTimes New Roman&qu;msansiily:&quTimes New Roman&qu">这道以前错过的题目怎么又做错了!”msansiily:&quTimes New Roman&qu">为了防止犯低级错误,我的做法是时刻提醒我自己要小心。我经常在考试前在草稿纸或者本子上写上自己平时容易犯的错误,比如一定要记得函数的定义域之类的。然后考试时不停地提醒自己不要犯此类错误,这样效果很好。还有就是,考试时不要总想着做完所有题目后有时间检查,一定要把题做成一遍就过,一遍就对。