The best, hands down.
He is a knowlegeble, relaxed and fun teacher. Overall had a good experience with him.
I was scared of him at first but when you get to know him he is really nice and funny. class is so fun
He is the best teacher I have ever had. He also has biggg arms!
I didn't know Penner taught math. He teaches woods and he's wicked cool and fun
amazing teacher so cool your your missing out if yo dont have him for anything he make his classes fun and actully listens to us