Kim Minjeong, Kang Bong Jin
Department of Teaching Education, Dankook University College of Education, Yongin, Korea.
Department of Anesthesia and Pain Medicine, Dankook University College of Medicine, Cheonan, Korea.
Korean J Med Educ. 2017 Sep;29(3):153-163. doi: 10.3946/kjme.2017.61. Epub 2017 Aug 29.
Mechanistic case diagram (MCD) was recommended for increasing the depth of understanding of disease, but with few articles on its specific methods. We address the experience of making MCD in the fullest depth to identify the pros and cons of using MCDs in such ways.
During problem-based learning, we gave guidelines of MCD for its mechanistic exploration from subcellular processes to clinical features, being laid out in as much detail as possible. To understand the students' attitudes and depth of study using MCDs, we analyzed the results of a questionnaire in an open format about experiencing MCDs and examined the resulting products.
Through the responses to questionnaire, we found several favorable outcomes, major of which was deeper insight and comprehensive understanding of disease facilitated by the process of making well-organized diagram. The main disadvantages of these guidelines were the feeling of too much workload and difficulty of finding mechanisms. Students gave suggestions to overcome these problems: cautious reading of comprehensive texts, additional guidance from staff about depth and focus of mechanisms, and cooperative group work. From the analysis of maps, we recognized there should be allowance of diversities in the appearance of maps and many hypothetical connections, which could be related to an insufficient understanding of mechanisms in nature.
The more detailed an MCD task is, the better students can become acquainted with deep knowledges. However, this advantage should be balanced by the results that there are many ensuing difficulties for the work and deliberate help plans should be prepared.
机械病例图（MCD）被推荐用于加深对疾病的理解，但关于其具体方法的文章较少。我们全面深入地阐述制作MCD的经验，以确定以这种方式使用MCD的优缺点。
在基于问题的学习过程中，我们给出了MCD的指导方针，用于从亚细胞过程到临床特征的机制探索，并尽可能详细地进行阐述。为了了解学生使用MCD的态度和学习深度，我们分析了一份关于体验MCD的开放式问卷的结果，并检查了最终成果。
通过对问卷的回复，我们发现了几个有利的结果，其中主要的是通过制作条理清晰的图表过程促进了对疾病更深入的洞察和全面的理解。这些指导方针的主要缺点是工作量过大的感觉和难以找到机制。学生们提出了克服这些问题的建议：仔细阅读综合文本、工作人员关于机制深度和重点的额外指导以及小组合作。通过对图表的分析，我们认识到应该允许图表外观存在多样性以及许多假设的联系，这可能与对机制本质的理解不足有关。
MCD任务越详细，学生就越能熟悉深入的知识。然而，这一优势应与工作中随之而来的许多困难相平衡，并且应该制定深思熟虑的帮助计划。
