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高中排列组合解题技巧研究
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作者 刘宗雨 《神州》 2019年第4期135-135,共1页
本文主要围绕高中排列组合问题进行研究讨论,旨在充分了解排解组合的解题技巧和排列组合的类型题目,为以后学好概率论和数理统计知识打下坚实的基础。排列组合类型的题目相对来说比较简单,也很易于理解,因此其也是考生比拿分的题型,但... 本文主要围绕高中排列组合问题进行研究讨论,旨在充分了解排解组合的解题技巧和排列组合的类型题目,为以后学好概率论和数理统计知识打下坚实的基础。排列组合类型的题目相对来说比较简单,也很易于理解,因此其也是考生比拿分的题型,但想全面掌握也是比较困难的,因为在高中数学教材中,排列组合的问题类型相对来说较多,题目和纷繁多样,而对于考生来讲,在解答此类问题时往往会因为没有分清题目,错用解题方法而导致题目解答错误。本文就高中排列组合问题的类型进行归纳和总结,目的在于将高中课程中涉及到的排列组合问题进行研究和归纳,为今后在解题和高考中遇到问题能够第一时间快速准确的找到解决问题的关键和方法,从而提升解题能力,培养学习数学的兴趣,并在高考中取得良好的成绩。 展开更多
关键词 排解组合 相邻问题 相隔问题 定序问题
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Role of Metacognition in Mathematical Problem Solving Process of Permutations and Combinations--Basic Study for CAI Software Development 被引量:1
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作者 Atsuo Murata Yukio Ohta 《Computer Technology and Application》 2013年第6期296-306,共11页
When solving a mathematical problem, we sometimes encounter a situation where we can not reach a correct answer in spite of acquiring knowledge and formula necessary for the solution. The reason can be attributed to t... When solving a mathematical problem, we sometimes encounter a situation where we can not reach a correct answer in spite of acquiring knowledge and formula necessary for the solution. The reason can be attributed to the lack in metacognitive abilities. Metacognitive abilities consist of comparing the difficulty of problem with own ability, proper plan of solution process, and conscious monitoring and control of solution process. The role and importance of metacognitive ability in mathematical problem solving of permutations and combinations was explored. Participants were required to solve five practical problems related to permutations and combinations. For each problem, the solution process was divided into: (1) understanding (recognition) of mathematical problem; (2) plan of solution; (3) execution of solution. Participants were also required to rate the anticipation whether they could solve it or not, and to rate the confidence of their own answer. According to the total score of five problems, the participants were categorized into the group of the high test score and the group of the low test score. As a result, at the plan and the execution processes, statistically significant differences were detected between the high and the low score groups. As for the rating on the anticipation of result and the confidence of own answer, no significant differences were found between both groups. Moreover, the relationship between the score of plan process and the score of execution process was statistically correlated. In other words, the more proper the plan process was conducted, the more proper solution the participants reached. In such a way, the importance of metacognitive ability in the solving process, especially the plan ability, was suggested. 展开更多
关键词 Permutation and combination problem METACOGNITION understanding plan EXECUTION CAI (computer assistedinstruction).
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