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我们在解决实际问题时,常常需要设计或者评估方案,从而作出正确的决策。这类“方案型问题”在近几年的中考中有明显的增加。“方案型问题”是开放性问题中的一种。它贴近学生的生活环境和知识水平,有利于激发学生的情感和学习兴趣;它能较好地培养学生分析和解决问题的能力,培养学生探究习惯和创新精神。现以一些中考题为例,对这类问题进行探究与分析。常见的“方案型问题”有以下三类:
When we solve practical problems, we often need to design or evaluate solutions so that we can make the right decisions. Such “program problems” have shown a marked increase in the senior high school entrance examinations in recent years. “Program problems” is one of the open issues. It is close to the student’s living environment and knowledge level, which is conducive to arouse students’ emotion and interest in learning. It can better develop students’ abilities to analyze and solve problems and develop students’ exploring habits and innovative spirit. Now take some senior high school entrance examination questions, for example, to explore and analyze such issues. Common “programmatic problems” have the following three categories: