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数学中的两解问题,其重要性是不言而喻的.考虑问题与解决问题的时候,策略与举措是否正确固然很重要,是否完备更是素质与能力之充分体现的试金石.因此解题时,有没有两解的观念,一旦出现两解是否取舍,怎样取舍,都是在教学过程中必须要很好地解决的基本问题,加强这样的训练可以使学生对相关两解的数学问题做起来较少失误,应当始终贯穿于教学活动的具体环节.典例1.求过点(-2,2),且在x轴上的截距是在y轴上截距的
The importance of the two solutions in mathematics is self-evident.Whether it is important to consider the problems and solve the problems, whether the strategies and measures are correct or not is the touchstone of whether the completeness is the full manifestation of the quality and ability. , There is no concept of two solutions, once the two solutions whether the choice of trade-offs, how to choose, are in the teaching process must be a good solution to the basic problems, to strengthen such training can make students do two mathematical problems related to the solution Less mistakes should always be through the specific aspects of teaching activities Example 1. Find a point (-2,2), and in the x-axis intercept is the y-axis intercept