关于“用字母表示数”这个知识点在课标教材中的编排位置,我在《“从用字母表示数”看“课标教材”与“大纲教材”》(发表在《中小学数学》初中版2008年第1-2期上)一文中主要从人教大纲版(我国在上世纪九十年代全国通用的根据当时的《数学教学大纲》编写的教材)对这个知识点的编排和当时我们使用的人教课标版教材(根据全日制义务教育《数学课程标准》实验稿编写的教科书,以下简称《课标版》)对这个知 About the “number of letters” This point of knowledge in the standard textbook teaching materials, I am in the “” from the number of letters “see ” course materials “and ” syllabus “” ( Published in “primary and secondary mathematics” junior high school version in 2008 1-2) in a text mainly from the people syllabus version (China in the nineties of last century according to the current “syllabus”) The arrangement of this point of knowledge and the textbook of the people who taught us at that time (textbook based on the full-time compulsory education math curriculum standard experimental text)