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“计算能力”是学生学习数学所必备的基本能力,是学习数学的基础。培养和提高学生的计算能力,是小学数学教学的主要任务之一。作者从创设情境.激发兴趣:透彻理解算理是提高计算能力的关键;熟记常用数据是提高计算能力的手段;良好的计算习·瞬是提高计算能力的保证这几个方面谈了如何有效提高学生的计算能力。 相似文献
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冯加超 《中国校外教育(理论)》2012,(9):122-122
要培养学生的计算能力,教师首先要激发学生的计算兴趣,使学生乐于计算。借助一节计算教学课,谈一下在计算教学中如何创设学生感兴趣的情境、开展计算比赛活动等形式来激发学生计算兴趣,收到了比较好的效果。同时,改善评价方法,也确实调动了学生的积极性,使他们在整个数学学习过程中产生了不同的感受,增强了他们正确计算的欲望。 相似文献
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冯康 《淮南师范学院学报》2015,(3)
为改正现有认知计算的不足,提出了基于问题的一元Fuzzy事件认知计算。它包含感知计算、建模计算、决策计算三个不同的阶段,感知计算依据问题和模型对外界发生的一元Fuzzy事件进行预处理,并将筛选出的一元Fuzzy事件计算为认识;建模计算将不同的认识计算为模型;决策计算接收外界提交的指令,根据模型计算出完成指令的答案。实验发现,基于问题的一元Fuzzy事件认知计算改正了已有认知计算的不足。因此,它是对人类大脑处理认知信息的准确模拟。 相似文献
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《实验室研究与探索》2017,(10)
作为一种新兴的文化形态,计算文化近年来在国内外已经逐步得到认同和重视。作为高校面向全校师生的重要教学部门,计算机实验教学中心在计算文化建设方面理应起到积极的带头作用。在计算机实验教学中心计算文化建设普遍空白的背景下,结合计算机实验教学中心实际,提出了计算机实验教学中心计算文化建设的指导原则,介绍了相应的建设方案内容和取得的成果。为高校相关部门计算文化建设提供借鉴,同时也为高校计算机实验教学中心的发展提供了新思路。 相似文献
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广义量词的复杂性有两个层次:句法层面的复杂性和语义层面的复杂性,我们集中研究了广义量词的语义复杂性。在有穷的语境中可以找出自然语言量化语句真值的复杂性。这些复杂性与图灵机中的可计算性、作为算法的意义的等价性、计算复杂性、易处理性和不易处理性等内容相关。广义量词计算复杂性已有诸多相关研究成果。 相似文献
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Daved M. Muttart 《Teaching Statistics》2009,31(1):12-14
Computational formulae are a throwback to a time when computers were not widely available. Today their teaching obscures important underpinnings of statistical theory and practice. 相似文献
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《学校用计算机》2013,30(1-2):143-152
Summary When thinking of reasoning, problem solving, communication, and connecting related ideas, the tool of choice in nearly every discipline is the microcomputer. Furthermore, unlike the traditional calculator, the modern classroom computer has an unparalleled ability to implement both graphical and procedural components of mathematics understanding in a single unified object. By students' creation and utilization of mathematically relevant computer-based objects, this dual encapsulation provides them with a unique opportunity to see both the form of representation and their actions utilizing this representation simultaneously. This paper suggests that the object-oriented environments that modern technology enables are ideally suited to parallel and facilitate the ability of students to take a broader variety of action upon objectsof a nature and kind hitherto unknown. These student-controlled actionsupon these mathematically powerful and computer-enabled objectshave the potential for creating classroom environments that both surpass the pale hopes of the integrated learning system and surprise those wedded to a conservative view of Piagetian developmental levels. 相似文献
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A. Edwards 《Educational Studies in Mathematics》1984,15(1):59-73
The importance of computational estimation is generally acknowledged. The widespread introduction of the hand-held calculator greatly increases its significance, particularly as a means of teaching number sense.The reason for its failure to be taught is traced to the multiplicity of methods used in estimation. Some agreed procedures are therefore suggested. These procedures have been developed in an unusual situation but are appropriate elsewhere. Detailed suggestions are made for estimating sums, differences, means, products, quotients and percentages. 相似文献
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《华夏少年(简快作文 )》2014,(10)
计算能力是学生学习数学所必备的基本能力,是学习数学的基础,培养和提高学生的计算能力是小学数学的主要任务之一。计算的准确率和速度如何,将直接影响学生学习的质量。在小学阶段学好计算,并形成一定的计算能力,是一件终身受益的事情。 相似文献
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《The Journal of educational research》2012,105(6):332-336
AbstractThe necessity for developing computational estimation procedures has been well established. However, the teaching of this skill has been neglected in schools. There is little information available on the cognitive processes used by most school-aged children when doing estimation problems. In this study, 26 middle school students, representing a variety of backgrounds and achievement levels, were individually asked to estimate answers to 12 computational problems and explain how they obtained their answers. They were not allowed to use writing materials. Results indicate that estimation skills are highly dependent upon a student’s "number sense." 相似文献
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Robert W. Janke 《Psychology in the schools》1980,17(1):30-32
This study examined the computational errors made by 370 educable mentally retarded students on the arithmetic subtest of the Wide Range Achievement Test. There were 233 males and 137 females in the sample, and the ages ranged from 8 to 18. Engelhardt's (1977) error classification was used to identify error types. Retarded students had a lower percent of grouping and inappropriate inversion errors and a higher percent of incorrect operation errors than regular students had in Engelhardt's study. 相似文献
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双极型晶体三极管的损坏大多是由于功耗过大所致,因此,正确地计算三极管的功耗是选择三极管的关键。本文对共射、共基和共集三种电路中晶体三极管的功耗问题进行了研究,分别推导了三极管功耗的计算公式。同时用EWB仿真的方法讨论了三极管工作在放大、饱和、截止3种状态下功耗计算的简化算法。 相似文献