目前,新课程核心要重视控制变量法在探究环节的运用及掌握。控制变量法指的就是分析物理和物理量间的联系时,要保持影响这个物理量的其他物理量不变,分析变化的物理量和要分析的物理量之间的一系列联系,此分析方法称为控制变量法。 At present, the core of the new curriculum should pay attention to the use and control of the control variable method in the exploration. Control variable method refers to the analysis of the relationship between physical and physical quantities, to maintain the impact of this physical quantity of other physical constant, analysis of changes in the physical quantity and the physical quantity to be analyzed a series of links between this analysis method is called the control variable method .