小升初数学衔接班教材

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1、天才就是百分之九十九的汗水加百分之一的灵感。目录第一讲计算中的技巧··········································································1第二讲行程问题·················································································5第三讲工程问题·················································································8第四讲图形的面积··

2、···········································································17第五讲有理数·····················································································21第六讲有理数的加减法······································································24第七讲有理数的乘除法立志！勤奋！博学！创新！48天才就是百分之九十九的汗水加百分之一的灵

3、感。······································································28第八讲有理数的乘方科学计数法··················································30第九讲整式··························································································33第十讲一元一次方程··················································

4、·························35第十一讲实际问题与一元一次方程·························································39第十二讲图形的初步认识········································································43第十三讲角······························································································45第十四讲相交线平行

5、线·········································································51第十五讲平行线的性质命题定理·························································54立志！勤奋！博学！创新！48天才就是百分之九十九的汗水加百分之一的灵感。第一讲计算的技巧知识导航我们在进行运算时，除了熟练掌握好运算法则外，还要通过观察和分析，找出题目中数的特点，合理、有效地进行计算。整数、小数与分数四则混合运算常用的方法、技巧如下：1、运算法则：先乘除后加减；先算小括号，再

6、算中括号；同级运算从左到右依次计算。2、运算定律与性质：加法交换律：；加法结合律：；乘法交换律：乘法结合律：乘法分配律：减法的性质：除法的性质：3、灵活运用通分和约分4、分数、小数化成统一的形式再计算，一般是分数化成小数。5、凑整法：运用运算定律，使式子中一些数凑成整十、整百或整千的数再计算。我们通常是利用运算律将一些数凑成整一、整十或整百再计算。立志！勤奋！博学！创新！48天才就是百分之九十九的汗水加百分之一的灵感。6、分组分解法：利用交换律和结合律对式子进行分组求解，最后再综合求解。7、综合方法：计算比较复杂的式子时要多种方法一起用。重难点运算法则和运算定律与性质的掌握和应用。易错

7、点去括号是的变号法则，尤其是括号前是减号。精典例题例1：＋＋＋＋＋＋＋＋思路点拨以上的每个分数的分母正好是相邻两个自然数的积，而且分子正好是分母两个因数的差（1），我们可以直接利用裂项公式进行裂项产生加减抵消后化繁为简。模仿练习例2：计算：975×0.25+－9.75模仿练习立志！勤奋！博学！创新！48天才就是百分之九十九的汗水加百分之一的灵感。例3：÷+÷+÷（2010年成都育才网络班招生数学试题）模仿练习计算：（2013年成都外国语学校本地