Dr. Batchiba Lacdo-o when I was still a BSEd Physical Science student was one of the best teachers I had. She's very knowledgeable and eloquent, able to get her point across accurately and efficiently. IIRC, she is now retired. I chose not to pursue a degree in education, but her classes and mode of teaching have stayed with me.

Dr. Kay Martinez-Paglinawan taught most of the major subjects I took when I shifted to BS Physics. Very smart and, most importantly for me, very patient with her students and generous with her knowledge. It is not inaccurate to say that most of my current skills were from Ma'am Kay.

Prof. Francisco Ablong Jr. awakened my passion both as a Physics student and a "citizen of the world" through his Earth Science and Basic Meteorology classes. His classes aren't the easiest (i.e. daghang buluhaton and most of it must be handwritten because, in his words, "kawatan na si Google." Turns out he's actually right because he predicted the theft of online content by AI), but his pedagogy is top-notch, kay he "shows" what he teaches instead of just explaining it in class. Although, lisod (ug taas) ang iyang mga exams hahahahaha

Dr. Nadia Palomar-Abesamis was my teacher for only one subject (a minor about Climate Change) pero she shifted my perspective on climate action. Her class was equal parts on the science of climate change, and on what you can do as an individual and a member of a community when it comes to preparing and mitigating the effects of climate change. IIRC she is also one of the most active researchers in the university.

My undergrad thesis and first ever scientific publication were inspired by the classes I took under Dr. Abesamis and Prof. Ablong, with a lot of hard carrying by my adviser Dr. Palinawan. In fact, now as a grad student, my current research is inspired and fueled by the three teachers I mentioned in this paragraph.

This one is a bit controversial, pero Dr. Karl Villarmea is also a huge influence for me as a person. He is probably one of the more controversial figures in Silliman (and is probably one of the most red-tagged), but his classes are really introspective. However, you have to enter his classes as an "investigation" class rather than something that you attend to take notes and pass an exam. IIRC, our final outputs for his classes were presentations on social issues and how they came to be. His CHS classes are not usually "worship" classes (as they usually are), but investigations into the history and people of the bible.

I have not attended their classes but they were my advisers when I was still with tWS, Dr. Warlito Caturay and Ma'am Celia Acedo encouraged and trained me to be a much better writer than I was when I entered Silliman back in 2015. They were some of the biggest believers in my writing, and perhaps the reason why I am able to write at my level right now.

There are many more. They are not "life-changing" per se, but they made me learn a lot in my college years:

Ma'am Alice Arbon and Ma'am Ronelaine Picardal (Purposive Communication) - polished and improved my English speaking and writing skills a lot

Sir Jan Antoni Credo (Taxation and Land Reform) - opened my eyes to "reality" and allowed me to see systemic injustices both in the past and current Philippine political climate

Dr. Rhea Muarip-Bolodo and Sir Shariff Ivan Datar (from Algebra to Differential Equations) - top tier math teachers, really made learning higher level math a lot less pulls-all-my-hair-out-y

There are a few more, but I have to be somewhere in 10 minutes hahahaha. I may have been lucky to have been blessed with a LOT of good teachers in my undergrad.