great teacher but hes a bit scary
unbelievable teacher! knows exactly what he's doing!
Mr. Costello is a great teacher but should have done something more with his career, easily the best teacher I've ever had.
lads sheet of paper out! i love the way some of you think im jokin lads
Top class, jus do ur work nd a A1 wil easily follow...
Uber teacher its difficult not to do well with him, but for god's sakedon't mess
Great teacher! He is so smart he doesn't even need the history book.
Strict but fair. Makes some of the really boring History exciting. Of course some of it is good but he makes that better too. Look forward to his classes... unless you haven't done his many notes.
good teacher, really gets you motivated with his pep talks
never had him-but isnt he shaggin ms.ryan?what a legend
got me an a in hist in the junior cert, and an a in maths in the leaving and im now genius.. has an amazing knowledge of course material
brilliant teacher, he puts loads of effort in, respect him while you have him
strict and rough around the edges but a brilliant maths teacher-do what he says and you'll do really well MA11
hard but fair. gave me a love for history and got me the A i needed in maths. he is a legend after porking miss ni rionn!
He's quite strict and has an approach that is not condusive to positive learning. His manner and style of teaching are a barrier to any intrinsic motivation.
EHHH.. Well, quite stern but he helps you to get the job done!
stern teacher.no jesting in class but ive never known history so well.1of best teachers ive ever had.
Strict but you learn your maths like the back of your hand after him.
No messing here! Great maths teacher though, one of the best.