i personally don't like the guy, but truth be told, he is a good teacher, and amusing on occasion.
My Enviromental Ed Teacher - he knows alot and is helpful.
what the others said. he can be a bit mean/aggro sometimes, but overall he's a really good teacher (makes good notes)
A really good teacher, he makes the subject a lot easier to understand - he's also very fair
Mr Casley is awesome! Explains things really well, fair marker too. He can be a bit aggro sometimes though, he overreacts a bit. But on the whole a good teacher to have for Science.