Very difficult, but very committed and a very good teacher
He plays favorites. Hard tests that require lots of time to study for to succeed. Lots of work. Cool teacher, fun, and funny. Really laid back. Great stories told in the class. Get to see his animals
I love his class! Yah it's hard, but how else would we learn anything
He is an awesome teacher, my favorite, but his class is my hardest, especially his tests, aye carumba.
I think Mr. Kessler is a cool teacher. However he can be unclear sometimes and unhelpful. Also his tests are way too hard even if you did studied for them. But I am learning alot.
mr.kessler is the coolest teacher, his tests are hard, but u can learn a lot from him.
i like how his class is relaxed and stuff. it's for people that enjoy biology...i'm takin AP senior year w/ him definetly
yes, he plays favs...so don't get on his bad side is all; tests are good because he makes u actually understand it...if you actually enjoy bio, his class rocks
class is nearly impossible, not helpful and does play favorites as listed earlier
His classes are hard, but you learn a lot. He is a fun teacher.
hardest teacher.... and he has favorites... tests are sooo hard