Self-Directed Learning for Histopathology Using a Survey-Based Approach and Development of an Identification Key

For the classification of colorectal polyps, we implemented an approach in which students are encouraged to use their imagination. First, students received surveys with histological pictures via an online tool, had to create associations for the observed tissue structures, and use these in an identification key. Subsequently, an interactive lecture linked their descriptions to correct terminology, followed by an exam. Participation in the surveys varied between 69 and 100%. All students took the exam, with a 73% pass rate. Feedback from 62 students (84%) was positive, highlighting the method's effectiveness, making our approach successful, and a blueprint for future educational innovations.