林卫华 2019-06-10 10:29

<span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">自信心不足，不敢下手 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">原因： <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">1、对于题型本身掌握不好，没思路； <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">2、有些想法，不知道是否正确，不敢动笔； <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">3、不会写过程； <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">4、会做，懒得写。后果：导致考试比作业还差。 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">解决方案： <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">1、问老师、对比类似的例题寻找相同之处；几何先找模型，在思考此种模型的性质特点以及辅助线做法。代数看过程，分析每一步的目的； <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">2、有想法一定要落实在笔头上。怕错写在草稿纸上，视觉带给我们的思路远比空想要多； <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">3、上课认真记笔记，将老师的解题过程详细的记录在本上，几何有模型，代数有步骤。多模仿老师的解题过程，慢慢熟练； <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">4、会做不代表能做对，很多题目的易错点只有在做后才会发现。很多丢分的题目往往是那些一看就会一坐就错的“简单题”； <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">5、有时候解题方法不是一下子就能想出来的，一步就能想出来，那就是完美主义理想。所以在没有明确思路的情况下，我们可以多尝试，一定可以找到正确的思路方式。

林卫华 2019-06-10 10:29

<span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">考虑问题不全面，不会进行分类讨论 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">解决方案： <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">1、注意几种经常需要分类讨论的知识点，就初二暑假的知识点而言，函数自变量取值的范围，一次函数的k,b的正负性，平方根的双重性，直角坐标系中点的坐标与线段长度的转化等等。 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">2、学会讨论方法，把每一种情况都写下来，然后分别解出每种情况下的结果。 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">3、注意分类之后的取舍，并不是所有情况都是正确答案，尤其是解分式方程和根式方程的时候，会出现增根，一定要检验。

林卫华 2019-06-10 10:29

<span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">做几何题时候不会做辅助线 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">原因：对于几何模型认识不充分 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">解决方案：每一种基本的几何模型都有定义、性质和判定三方面，要将这三方面知识熟记于心。 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">一般来说应用的过程是：判定是哪种模型→此模型有何性质→此性质能不能直接用→若不能，则作辅助线体现其性质。 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">例如：暑假学的平行四边形模型→对角线互相平分，对边平行且相等，对角相等。等腰三角形模型→三线合一。倍长中线模型→有三角形一边中点，可以考虑倍长中线构造全等。 <span style="color: rgb(50, 50, 50); text-transform: none; text-indent: 10px; letter-spacing: normal; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">还有梯形的的三类辅助线，都应该熟记。