(接上期)由以下关于“=”的不同理解,我们即可更好地理解“过程性观念”与“结构性观念”之间的重要区别。在算术中我们主要是从操作的观点看待“=”的:等号的左边表明我们应当实施哪些计算,得出的结果则应写在右边。也正因此,等式的两边就是不对称的,或者说,这时的等式具有明确的方向性。与此不同,“方程”中对于“=”的理解则主 (Continued) From the following understanding of “= ”, we can better understand the important distinction between “process idea ” and “structural idea ”. In arithmetic we mainly view it from an operational point of view: the left side of the equal sign indicates what calculations we should make and the results we write should be written to the right. For this reason, the two sides of the equation are asymmetric or, in other words, the equation has a definite directionality. In contrast, the understanding of “= ” in “Equation ” is the main one