Research for Inclusive STEM Education Center, School of Life Sciences, Arizona State University, Tempe, Arizona.
School of Life Sciences, Arizona State University, Tempe, Arizona.
Adv Physiol Educ. 2022 Mar 1;46(1):125-139. doi: 10.1152/advan.00139.2021. Epub 2021 Dec 2.
Student enrollments in online college courses have grown steadily over the past decade, and college administrators expect this trend to continue or accelerate. Despite the growing popularity of online education, one major critique in the sciences is that students are not trained in the hands-on skills they may need for the workforce, graduate school, or professional school. For example, the Association of American Medical Colleges has recommended that medical schools evaluate applicants on their motor skills and observation skills, yet many online biology programs do not offer opportunities for students to develop these skills. In on-campus biology programs, students commonly develop these skills through hands-on animal dissections, but educators have struggled with how to teach dissections in an online environment. We designed a fully online undergraduate biology course that includes at-home, hands-on dissections of eight vertebrate specimens. Over three course offerings, we evaluated changes in four student outcomes: anatomical self-efficacy, confidence in laboratory skills, perceptions of support, and concerns about dissections. Here, we describe how we implemented at-home dissections in the online course and show that students taking the course gained anatomical self-efficacy and confidence in multiple laboratory skills. Based on open-ended responses, the students perceived that their experiences with the at-home dissections facilitated these gains. These results demonstrate that at-home, hands-on laboratories are a viable approach for teaching practical skills to students in fully online courses. We encourage science instructors to introduce at-home laboratories into their online courses, and we provide recommendations for instructors interested in implementing at-home laboratories.
在过去的十年中,在线大学课程的学生注册人数稳步增长,高校管理人员预计这一趋势将继续或加速。尽管在线教育越来越受欢迎,但科学界的一个主要批评是,学生没有接受他们可能在劳动力市场、研究生院或专业学校所需的实践技能培训。例如,美国医学院协会建议医学院根据学生的运动技能和观察技能来评估申请者,但许多在线生物学课程并没有为学生提供发展这些技能的机会。在校园生物学课程中,学生通常通过动物解剖的实践来发展这些技能,但教育工作者一直在努力探索如何在在线环境中教授解剖学。我们设计了一门完全在线的本科生物学课程,包括在家中对八个脊椎动物标本进行实践解剖。在三个课程中,我们评估了四个学生学习成果的变化:解剖自我效能感、对实验室技能的信心、对支持的看法以及对解剖的担忧。在这里,我们描述了我们如何在在线课程中实施家庭解剖,并展示了学生在课程中获得了解剖自我效能感和对多种实验室技能的信心。根据开放性回答,学生们认为他们在家中进行解剖的经历促进了这些收益。这些结果表明,在家中进行实践实验室是向完全在线课程的学生教授实践技能的一种可行方法。我们鼓励科学教师在其在线课程中引入家庭实验室,并为有兴趣实施家庭实验室的教师提供建议。