A lecture in college

Today, I visited the classroom of our college, where I had studied a lot (?) as a student. It has been more than two decades since I graduated from college. To be fair, this is my first time to enter the room, as shown in the right panel, because it did not exist; it was build around 2000 (left panel, right building).

I made a lecture regarding cardiomyopathy and cardiac infectious disease, such as acute pericarditis, myocarditis, and infective endocarditis to 3rd graders. I am not sure whether they could make heads or tails of my contents, although I made every effort to make the lecture easy to understand.

Anyway, it was an exciting experience. I love learning something new as well as teaching to young people who are eager to learn. I saw a few student sleeping during my lecture, but I was not surprised because I did it sometimes when I was a student. The problem is the volume I prepared was too much to handle in 90 minutes. Next time, if any, I would do more better.

P.S.
Last night, I had a nightmare, where I was late for Today's lecture and freaking out in a taxi while heading to college. After I woke up and found myself on my bed before dawn, I breathed a sigh of relief.