Watts Joseph, Crippen Kent J, Payne Corey, Imperial Lorelie, Veige Melanie
University of Florida, School of Teaching and Learning, PO Box 117048, Gainesville, FL 32611 USA.
Discip Interdscip Sci Educ Res. 2022;4(1):14. doi: 10.1186/s43031-022-00055-0. Epub 2022 Apr 13.
The radical global shift to online teaching that resulted from the initial lockdown of the COVID-19 pandemic forced many science educators into the predicament of translating courses, including teaching laboratories, that were based upon face-to-face or practical goals and conventions into ones that could be delivered online. We used this phenomenon at the scale of a research-intensive, land-grant public institution to understand the various ways that the switch was experienced by a large cohort of 702 undergraduate students taking General Chemistry Laboratory. Data was collected over 3 weeks with identical surveys involving four prompts for open-ended responses. Analysis involved sequential explanatory mixed methods where topic modeling, a machine learning technique, was used to identify 21 topics. As categories of experience, these topics were defined and further delineated into 52 dimensions by inductive coding with constant comparison. Reported strengths and positive implications tie predominantly to the topics of Time Management Across a Lab Activity and a Critique of Instruction. Consistent with other reports of teaching and learning during the pandemic, participants perceived Availability of the Teaching Assistant for Help as a positive implication. Perceptions of weakness were most associated with Having to Work Individually, the Hands On Experience, a Critique of Instruction, and Learning by Doing. Hands on Experience, which was interpreted as the lack thereof, was the only topic made up nearly entirely of weaknesses and negative implications. The topic of Learning by Doing was the topic of greatest occurrence, but was equally indicated as strengths, positive implication, weakness, and negative implication. Ramifications are drawn from the weaknesses indicated by students who identified as members of an underrepresented ethnic minority. The results serve as a reminder that the student experience must be the primary consideration for any educational endeavor and needs to continue as a principal point of emphasis for research and development for online science environments.
由于新冠疫情初期封锁导致全球彻底转向在线教学,许多理科教育工作者陷入了将基于面对面或实践目标及惯例的课程(包括教学实验室课程)转变为可在线授课课程的困境。我们以一所研究密集型的赠地公立大学为样本,来了解702名修读普通化学实验室课程的本科生群体在这种转变过程中的各种体验方式。在3周时间内,通过相同的调查问卷收集数据,问卷包含四个开放式问题。分析采用了顺序解释性混合方法,运用机器学习技术主题建模来识别21个主题。作为体验类别,这些主题通过持续比较的归纳编码被定义并进一步细分为52个维度。报告的优势和积极影响主要与“实验活动中的时间管理”和“教学批判”这两个主题相关。与疫情期间其他关于教与学的报告一致,参与者将“助教提供帮助的可及性”视为一种积极影响。对劣势的认知大多与“必须独立学习”“实践经验”“教学批判”和“通过实践学习”相关。“实践经验”(被解释为缺乏实践经验)是唯一一个几乎完全由劣势和负面影响构成的主题。“通过实践学习”是出现频率最高的主题,但同时也被指出具有优势、积极影响、劣势和负面影响。我们从那些认定自己为少数族裔的学生所指出的劣势中得出了一些结论。研究结果提醒我们,学生体验必须是任何教育活动的首要考量因素,并且需要继续作为在线科学环境研发的主要重点。