Mr. Val is a great teacher. I’ve been with him two semesters. He sets the expectations clearly in the beginning. He broke down statistics materials for me. Then he overviewed things to make sure I am not lost in a big picture. Lots of practice problems. He designs his own lessons for students to learn and succeed in actual exam. He is very strict at first. But he’s really willing to help his students & succeed in their class. Teachers like Mr. Val makes iStudy services worth every bit.