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高考所承付的职责决定了高考命题必须将三个“有利于(有利于高校选拔人才,有利于中学教学,有利于实施素质教育)”作为基本追求,从而也就必然地要求高考命题必须追求合理的试题难度,以实现上述三个“有利于”的有机平衡.相关研究表明,难度值为0.55的试卷可同时具有较好的“信度”、“效度”和“区分度”.基于此,基于考试的高中数学解题训练应该将0.6作为最佳的难度值预设.
College entrance examination commitments decided that the college entrance examination proposition must be “in favor of (college talent selection is conducive to secondary education, is conducive to the implementation of quality education) ” as the basic pursuit, which will inevitably require the college entrance examination proposition We must pursue a reasonable degree of difficulty of the test in order to achieve the organic balance of the above three “beneficial ” .Related studies show that the difficulty of 0.55 papers can have better “And” distinction degree. "Based on this, the high school math-based problem solving training should be preset as the best difficulty value of 0.6.