Sir Gabby is chill and nice. Lectures are boring and are not much help especially when it comes to calculations. Very textbook-driven ang lectures -- no powerpoint slides or other materials (maybe a handout or two over the course of the semester). May misalignment ang homework and the exams so magugulat ka na lang sa hirap ng exams ni sir. Homework is like a level 1 and the exams are level 3/4.more