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整体法是将问题或某些条件看成一个整体来处理,是一种重要的解题方法,其思维方式注重从全局着眼、全面地、整体的观察、分析和思考问题,重视问题的整体结构的特殊性。笔者在教学实践中,深感整体思想在解题中占有一定比重,若运用得当,可使学生少走或不走弯路。下面谈谈自己的几点体会,与大家共同探讨。一、整体代入例:已知x+1/x=11,求x3+1/x3的值。分析:此类型可从已知方程求出,再代入所求式子,显
The whole law treats the problem or certain conditions as a whole. It is an important way to solve problems. The way of thinking focuses on the overall, overall and overall observation, analysis and thinking of problems, and the overall structure of the problem The particularity. In the teaching practice, the author is deeply impressed by the fact that the whole idea occupies a certain proportion in solving problems. If used properly, the students can make fewer or no detours. Here to talk about some of my own experience, to discuss with you. First, the overall substitution Example: Known x + 1 / x = 11, find the value of x3 +1 / x3. Analysis: This type can be obtained from the known equation, then substituted into the desired formula, significant