初二数学提分导师(4)

**章 勾股定理 板块一 勾股定理及其逆定理··································2 板块二 特殊三角形中的勾股定理······························5 第二章 四边形(一) 板块一 四边形性质与判定回顾································12 板块二 四边形中的勾股计算··································16 板块三 四边形中的翻折问题··································20 第三章 四边形(二) 板块一 四边形中的*值问题··································26 板块二 四边形的面积问题····································28 板块三 等面积法············································31 第四章 正方形 板块一 正方形的对称问题····································38 板块二 正方形的旋转问题····································43 第五章 中点问题 板块一 中位线定理及斜边中线定理····························50 板块二 中点型几何综合······································56 第六章 用函数的观点看方程(组)与不等式 板块一 一次函数基础复习····································64 板块二 用函数的观点看方程 (组)与不等式·····················70 板块三 两直线的位置关系与一次函数面积问题··················74 第七章 一次函数的图象问题 板块一 一次函数与实际问题··································84 板块二 动点与函数图象······································88 板块三 函数探究初步········································94 第八章 一次函数综合 板块一 一次函数图象上图形的存在性··························102 板块二 一次函数的新定义问题································107 第九章 一元二次方程(一) 板块一 一元二次方程的定义与解······························116 板块二 一元二次方程根的判别式······························120 板块三 一元二次方程解应用题································124 第十章 一元二次方程(二) 板块一 一元二次方程的整数根问题····························130 板块二 一元二次方程综合题··································133 第十一章 几何变换 板块一 平移················································140 板块二 旋转················································144 第十二章 材料阅读专题 板块一 作图依据型材料阅读题································152 板块二 函数型材料阅读题····································158 第十三章 数据的分析 板块一 平均数、众数与中位数································168 板块二 方差················································175 板块三 频数分布表与频数分布图······························180 第十四章 反比例函数 板块一 反比例函数的定义及图象······························188 板块二 反比例函数解析式中k的几何意义······················193 板块三 反比例函数与一次函数综合····························198