Developing a Sense of Scale: Looking Backward
Developing a Sense of Scale: Looking Backward
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培养规模感：回顾过去
DOI：
10.1002/tea.20288
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发表时间：
2008
影响因子：
4.6
通讯作者：
Amy R. Taylor
中科院分区：
文献类型：
--
作者：
M. Gail Jones;Amy R. Taylor
尽管美国科学促进会（1989）将规模确定为跨越科学领域的四个主要跨学科主题之一，但我们才刚刚开始了解学生如何学习和应用规模概念。早期的学习规模的研究往往集中在线性距离，导航和寻路的看法，而最近的工作已经研究了学生如何在科学背景下概念化规模。本研究通过询问50名专业人员反思他们（在校和校外）学习量表的经历，试图了解从童年到成年对量表的理解是如何发展的。半结构式访谈被用来获得有关教育经验，非正式的经验，并在不同的专业规模的应用程序的信息。结果显示，大多数被试在工作中使用量表时，会使用锚点作为概念基准。76%的参与者认为身体体验，如开车、步行、骑自行车或乘坐飞机在环境中移动，有助于发展规模感。本研究的结果被用来开发一个可能的模型的轨迹规模的概念，发展为个人从新手通过增加专业知识的程度。在不同的职业中，参与者强调了规模在他们的工作中发挥的关键作用。对许多人来说，规模被视为完成与工作相关的任务的核心。2009 Wiley Periodicals，Inc. J Res Sci Teach 46：460-475，2009
Although scale has been identified as one of four major interdisciplinary themes that cut across the science domains by the American Association for the Advancement of Science (1989), we are only beginning to understand how students learn and apply scale concepts. Early research on learning scale tended to focus on perceptions of linear distances, navigation and way finding, whereas more recent work has examined how students conceptualize scale in science contexts. This study sought to understand how understandings of scale develop from childhood to adulthood by asking 50 professionals to reflect on their experiences (in and out-of-school) learning about scale. Semi-structured interviews were utilized to obtain information about educational experiences, informal experiences, and applications of scale in different professions. Results showed that most of the participants used anchor points as conceptual benchmarks when applying scale in their job. Seventy-six percent of the participants attributed physical experiences such as moving through the environment by car, walking, bicycling, or flying in an airplane as contributing to the development of a sense of scale. Results of this study were used to develop a possible model of the trajectory of scale concepts that develop as individuals move from novice through increasing degrees of expertise. Across professions, participants emphasized the critical role that scale plays in their work. For many, scale was viewed as central to accomplishing the work-related tasks. 2009 Wiley Periodicals, Inc. J Res Sci Teach 46: 460-475, 2009