Exploring Scientific Ideas in Informal Settings: Activities for Individuals with Visual Impairments,Journal of Chemical Education

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Exploring Scientific Ideas in Informal Settings: Activities for Individuals with Visual Impairments
Journal of Chemical Education ( IF 2.5 ) Pub Date : 2018-02-19 00:00:00 , DOI: 10.1021/acs.jchemed.7b00488
Anjli Kumar ₁ , Lauren A. McCarthy ₁ , Sarah M. Rehn ₁ , Dayne F. Swearer ₁ , Ryan N. Newell ₂ , Sofia Gereta ₂ , Eduardo Villarreal ₂ , Sadegh Yazdi ₂ , Emilie Ringe _{1,

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Affiliation

Four new modules for the scientific education of individuals with visual disabilities are reported. Designed for informal settings, the modules are safe and inexpensive and last 10–15 min each. The module entitled The Sound and Feel of Data represents axes and data points with pipe cleaners and coins, respectively, allowing for a discussion of data presentation and trends without reliance on visual signals. The Conductivity of Materials module tactilely introduces concepts of electron flow in metallic, semiconducting, and insulating materials using marbles, followed by a sound volume representation of the conductivity of everyday objects. The Optical Lenses module uses rope segments secured to a corkboard to trace tactile ray diagrams representing the concept of focusing, diverging, and aberration in optical lenses. Finally, the Chemistry and Physics of Heat module uses the dissolution of ammonium nitrate and sodium sulfate in sealed plastic tubes as well as the crystallization of sodium acetate to describe endothermic and exothermic processes. The modules were tested during an event attended by 38 participants with visual impairments; answers to learning assessment questions as well as pre- and post-module surveys suggest that we were successful at introducing scientific concepts and generating interest in science. This work provides new ways to introduce science that are applicable to all learners, visually impaired or not.

中文翻译：

在非正式环境中探索科学思想：视障人士的活动

据报告，有四个新的模块用于视力障碍者的科学教育。这些模块是为非正式场合而设计的，既安全又便宜，每个模块持续10至15分钟。名为“数据的声音和感觉”的模块分别使用管道清洁器和硬币表示轴和数据点，从而允许在不依赖视觉信号的情况下讨论数据表示和趋势。“材料的电导率”模块在触觉上引入了使用大理石在金属，半导体和绝缘材料中的电子流动的概念，随后是表示日常物体的电导率的音量。该光学镜头该模块使用固定在软木板上的绳段来追踪触觉射线图，这些射线图代表了光学镜片中聚焦，发散和像差的概念。最后，热化学和物理模块使用硝酸铵和硫酸钠在密封塑料管中的溶解以及乙酸钠的结晶来描述吸热和放热过程。在有38位视力障碍参与者参加的活动中对模块进行了测试；学习评估问题的答案以及模块前和模块后的调查表明，我们成功地引入了科学概念并引起了人们对科学的兴趣。这项工作为介绍适用于所有视障者和非视障者的科学提供了新的途径。

更新日期：2018-02-19

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