例谈特殊值法在聋校高考数学题中的应用

Examples on Special Value Method Used in the College Entrance Examination in Mathematics in Schools for the Deaf

本文例谈了特殊值法在聋校高考数学选择和填空题中的应用。特殊值法,就是根据问题所给的全部信息,通过观察分析,选取包含在问题条件(或结论)中的某个特殊情形,经过简单的推理、判断或运算就得到问题的正确答案的方法。在高考中,"时间就是分数",解题的正确性与答题速度的快慢直接影响到总成绩。

Examples are given to show the application of special value method to multiple choices and blank filling in the college entrance examination in mathematics in schools for the deaf. Based on all the information from questions and by means of observation, analysis, simple reasoning, judgement or operations, special value method means that we select a special case contained in the conditions of the questions (or conclusion) to get correct answers to the questions. In the college entrance examination, time is score, with the accuracy and speed directly affecting the total score.