Mr. Keller is absolutely the best chemistry teacher you will have, ever. He loves the subject and teaching and this passion is apparent in everything he does. He will help you when you need it anytime, very understanding, knows EVERYTHING. Best ever.
Mr. Keller is a wonderful teacher, I had him for every class he taught. He's clear and understandable, and if you don't get it, he will explain it to you. If anyone knows where he currently teaches, t
Mr.Keller is one of the most fasinating teachers and also is easy to learn from not only about the subjects he teaches but who you should try to be in your life.
Mr. Keller is my favorite teacher. While talking to him he gives the impression that he knows what he is talking about. He's an intelligent man that gives you what you pay for.
I love him! He is my favortie teacher and I can go to him fro anything. He's so smart and nice. He is so understandable and a great teacher all around.
one of the smartest men i've ever met. being able to take a course with him is a true treat and i have no idea why hes teaching at a high school.
One of the best teachers ever. You'll learn a lot and enjoy it.
Very cool and easy teacher, gets on your case if you don't take AP Chem.