Usability Testing and the Development of an Augmented Reality Application for Laboratory Learning
Usability Testing and the Development of an Augmented Reality Application for Laboratory Learning
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DOI：
10.1021/acs.jchemed.9b00453
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发表时间：
2020-01-01
影响因子：
3
通讯作者：
Holme, Thomas A.
中科院分区：
文献类型：
--
作者：
An, Jiwoo;Poly, Laila-Parvin;Holme, Thomas A.
在普通化学实验室，学生通过动手活动学习实用的实验室技能，并接触到新的科学仪器。然而，由于各种原因，这些仪器通常被视为黑匣子，学生不知道如何使用它们或这些仪器的功能。这种倾向很可能会导致学生对学习仪器的态度产生某种程度的恐惧，尽管仪器是实验室教育的重要组成部分。教育实验室增强现实（ARiEL）是一种利用AR技术的应用，旨在将学生与科学仪器上的信息联系起来。ARiEL可以在学生进行实验时下载并在手机或平板电脑上使用，为他们提供有关实验室仪器的直接和即时信息。目前，pH计和电导率计是ARiEL可以识别的两种仪器，因为它们是通常用于普通化学实验室课程的小型台式设备。与第一学期普通化学学生的焦点小组进行的初步可用性研究表明，该应用程序不仅易于使用，而且在寻找特定仪器的信息时优于普通搜索引擎。该应用程序被用于第二学期的普通化学实验室课程和测试的可用性评估，并衡量学生对化学仪器的态度。结果表明，ARiEL的可用性有助于减少与使用仪器相关的焦虑，并提高智力可及性。
In general chemistry laboratories, students learn practical laboratory skills through hands-on activities and are exposed to new scientific instruments. However, these instruments are often viewed as black boxes for various reasons, where students do not know how to use them or what the instruments are capable of. This tendency is likely to induce some measure of fear in the students' attitude toward learning about instruments, even though instrumentation is a significant part of laboratory education. Augmented reality in educational laboratory (ARiEL) is an application utilizing AR technology designed to connect students to information on scientific instruments. ARiEL can be downloaded and used on phones or tablets while students are working on experiments, providing them with direct and immediate forms of information about laboratory instruments. Currently, the pH meter and conductivity meter are two instruments ARiEL can recognize as they are small, benchtop devices often used in general chemistry laboratory courses. An initial usability study with a focus group of first-term general chemistry students indicated that the application is not only easy to use but also preferred over a common search engine when looking for information on specific instruments. The application was used in a second-term general chemistry laboratory course and tested for usability evaluation and to measure students' attitude toward chemistry instrumentation. The results suggest that the availability of ARiEL helps to reduce anxiety associated with using instruments and to improve intellectual accessibility.