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按照现行普通中学教学教学大纲(修订草案,1956年版)的规定,初中代数在学习了“一元一次方程”和“一元一次不等式’之后按下去就学习“一次方程组”。大纲对这部分的内容,作了如下的安排: 一个方程含有两个未知数的情况。方程组。方程组的三种情形:(1)只有一组解的;(2)无解的;(3)有无穷组解的。数字系数和字母系数的二元一次方程组以及数字系数的三元一次方程组的解法。列出方程组来解应用题。作下列数字系数的方程的图家: y=ax+b, ax+by+c=0. 二元一次方程组的图象解法。本文准备就这一章的教材内容,安排体系,以及教学中的若干问题,作初步探讨,供进行本章教学时参考。
In accordance with the provisions of the Current General High School Teaching Syllabus (Revised Draft, 1956 Edition), junior high school algebra learns the “one equation at a time” and “one dollar one inequality” and presses it to learn “a system of equations.” Outline of this section The following arrangements were made: An equation contains two unknowns: the equations, the three sets of equations: (1) only one set of solutions, (2) no solutions, and (3) infinity solutions The binary equations of the numerical and letter coefficients and the solution of the ternary linear equations of the numerical coefficients.The equations are listed to solve the application problem.The mapper of the following equation of numerical coefficients: y=ax+b, ax +by+c=0. Image solution of binary equation system.This paper is prepared to make a preliminary discussion on the content, arrangement system, and teaching problems of this chapter for reference in the teaching of this chapter.