THE BEST BIO TEACHER IN PA HISTORY! Although the subject is pretty difficult, Mr. Koolen teaches in a way that everyone is able to understand. His end-of-class jokes always made my day!
Best biology teacher ever!!
A really great teacher and a great guy. You can tell he really knows his stuff and wants you to be able to understand it too - always tries to help. He is SO FUNNY with his bad jokes and puns... also when he shortens words and says "___ is the cool or hip way of saying _______" lol Plus he gives us
FUNNIEST TEACHER EVER. I seriously loved Mr. Koolen. He was seriously made to be a teacher! :)
And I love his bonus points on "quizzes" and how he lets you skip one MC. :)
Hands down the best sense of humor on campus. He's extremely clear when he teaches and is always so excited to talk to students and help them. Epic respect.
amazing person, amazing teacher, one of the best people you'll ever meet
Sweetest, most wonderful man ever. His awful jokes are great, and he always looks like teaching is the one place in the world he'd most like to be.
He's such a genuine nice guy. He tells the worst jokes you can't help but laugh at! He makes Bio fun and interesting (he draws pictures!!) but beware his tests/quizzes. He's a mean grader.
Understand that Mr. Koolen is the best teacher ever. He is nice and funny, yet he teaches the work well.
He is the "kool"est teacher ever. just look at his name. but seriously he teaches really well. you do have to do work, but you enjoy it
Mr. Koolen is the best teacher that I have had this year. I recently found out that I will not be in his class for Spring term,but having him has encouraged me to take upper level Biology upper year.
He is so funny and lame. Easy class. Laugh and you get a 6.
He was an amazing teacher. So funny but also good in class. I LOVED him
puns are terrible, but still make everyone laugh, good teacher overall
Mr. Koolen is amazing. Even his bad jokes are great because of his reaction. He probably could have been an actor, but I'm so glad he's my Bio teacher instead.
Mr. Koolen rocks! a nice guy who cares about his students, actually wants to be interesting and funny and amazingly teaches you at the same time! ur my fav mr k
mr koolen is the best teacher i've ever had. he's goodnatured, and cares about the well-being of his students. his jokes are great too! WE LOVE YOU MR. KOOLEN!
Mr. Koolen makes the class enjoyable while teaching you at the same time. He is the man!
MR. KOOLEN IS DA BOMMBBBBb!!!! he's by far the best teacher at the school. his jokes make my day. consider yourself lucky to have this man. so dont mess...HEHE:) EVERYONE LOVES YOU MR. K~ :)
Mr. Koolen is extremely good-natured and fun to learn from. It feels like you're not learning much in his class until you get to the final... then you realize how much he... well, almost tricked you into learning :). Wonderful, as a teacher or a person.
Mr. Koolen is cool-en. His jokes are great, his tests are good and he is nice. Da Man w/ the biology plan
Nice guy, gives free cuts, likes jokes, good tests, good teacher.
One of the best teachers i've had in my scholastic career. The man, the myth, the legend.
He knows his stuff and is doesn't have very hard tests. Nice guy.
mr koolen is the best teacher at this school, even though his jokes are lame he is still the man