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三元一次方程组的教学容易被定位于老师示范下的技能演练,方法的来龙去脉以及消元的思想不能得到很好的体悟、领会,使得课堂教学缺乏思维含量,淡失教学的品味.本文通过把脉固着点——二元一次方程组,在不断的调适中,把新的知识固着在呈稳定状态的“四基”之上,凝聚成有迁移力的知识,同时在不断完善认识结构,使得新知自然生长,顺乎内在关联与学生的认知规律,进而深化化归思想.
The teaching of the ternary one-time equation system is apt to be located in the skill demonstration under the teacher’s demonstration. The ins and outs of the method and the thought of eliminating the element can not be well understood and comprehend, which makes the classroom teaching lacks the content of thinking and neglects the taste of teaching. The fixed point - binary equations, in constant adjustment, the new knowledge fixed in a stable state of “four base” above, condensed into a migrant force of knowledge, while constantly improving the cognitive structure , So that the new knowledge of natural growth, with the internal relations and the cognitive rules of students, thereby deepening the return to thought.