一、串联成线,使基础知识系统化 数学的系统性强,基础知识一环扣一环。复习时,要注意沟通知识的内在联系,找到规律,使知识系统化。如整数加减、小数加减、分数加减,实质上,都是相同的单位才能直接相加减。又如,分数乘法的三个法则,可归纳成一个,即分数乘以分数,用分子相乘的积作分子,分母相乘的积作分母。由于长方体和正方体、圆柱体和圆锥体的联系紧密,可运用图表进行对比,加深对这些知识的理解和应用。通过比 First, the series into a line, so that the basic knowledge of systematic mathematical strong, basic knowledge of a loop. Review, we must pay attention to the internal relations of communication, find the law, the knowledge system. Such as integer addition and subtraction, decimal addition and subtraction, points addition and subtraction, in essence, are the same units can be directly added and subtracted. In another example, the three rules multiplication multiplication, can be grouped into one, that is, the fraction multiplied by the fraction, the product of the molecular multiplication as the numerator, the product of the denominator multiplied by the denominator. As the cuboid and cube, the cylinder and the cone are closely linked, you can use the chart to compare and deepen the understanding of these knowledge and application. Through