As a public health teaching assistant, I have encountered myself with many different types of students from all around the world. Each one of them has experienced different educational and learning strategies. As an international student, I can relate to many of those that come from different backgrounds. I have learned to integrate didactic and interactive strategies used in the American higher education system with conventional and experiential techniques used in my home country. I like to carry on my program of study from simple to more complex topics. Therefore, in Parasitology it is important to start with an introduction of the topic and then explore specific parasites in order of complexity: first the unicellular intestinal amoebas, second the multicellular tissular trematodes and lastly the intracellular complex protozoa. For this reason, I always start the class activity with a short review session of the topics covered before, followed by a full presentation of the infections under study, followed by clinical cases and public health concerns related to the diseases. After these activities are developed in the classroom, everyone moves to the laboratory, where the lab practicum takes place.
The main goal of my teaching strategy is to restrospectively associate learned knowledge with present topics under discussion. Repetition is essential to consolidate the new learning as long-term memories that will eventually transform into knowledge. Therefore, I prioritize having a 10-15 minutes review session of the lectures and lab practicum learned the week before, to associate the similarities and differences with the lectures that will be given on that week. I also believe in developing theoretical and practical review sessions before the mid-term and final exams. These review sessions are usually longer (2-3 hours) since the material covered is very diverse. Each major evaluation is accompanied by a study guide and glossary to facilitate individual studying from students:
Study Guide Laboratory Practicum (PDF)
This is a great opportunity to summarize complex topics in a visually appealing manner for students. It includes a variety of slides, images, and videos that will facilitate the conceptualization of the diseases. All diseases start with a definition, followed by history, epidemiological distribution, vectors, parasitic forms, life cycle, physiopathology, clinical manifestations, diagnosis, and prevention. During and after the lecture session, students watch videos with descriptive content about the disease to better understand its diagnosis and prevention.
Source of video: videosINBED. (n.d.). Animated life cycle of T. cruzi in the human host. [Video file]. Retrieved from: https://www.youtube.com/watch?v=1ais69H0li8&t=2s
Clinical cases possess great recognition for their versatility as a teaching strategy. I leave this section for the end of the lecture session since the student will already be familiar with the life cycle, clinical manifestations, and complications of the disease. Case reports provide two interrelated perspectives, both from the patient and from clinicians. By presenting clinical cases in a coherent manner, public health workers will get a better understanding of the diagnosis and management of neglected tropical diseases. Therefore, preventive measures can be implemented once the disease is diagnosed and its transmission is fully understood.
Experiential learning is all about learning through experiences and reflecting on these activities to fixate knowledge. Through wet-lab activities, students are able to observe, recognize and name specific species of parasites and their structures. This is a great diagnostic tool that can validate the knowledge about life cycles and parasitic forms learned in the classroom. In this activity, students are involved in the identification of the size, shape and morphological characteristics of parasites such as Plasmodium spp. (malaria), Ascaris lumbricoides (intestinal worms), Onchocerca volvulus (elephantiasis), etc.