Average 3.62 based on 27 teacher ratings
Brian Costello is a Mathematics teacher at Sligo Grammar School located in Clare, Clare. When comparing Brian Costello's ratings to other teachers in the county of Clare, Brian Costello's ratings are below the average of 4.45 stars. Additionally, the average teacher rating at Sligo Grammar School is 4.31 stars.
4
Easiness
4
Helpfulness
3
Clarity
4
Knowledge
5
Easiness
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Helpfulness
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Knowledge

a terrible teacher but really nice guy,easy to talk to.

5
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Best Teacher Ever! Great Classes, great craic, never a dull moment util he retired!

5
Easiness
4
Helpfulness
3
Clarity

wat a man..ledgend!

5
Easiness
5
Helpfulness
5
Clarity

ya pure legend!! sound man!

4
Easiness
4
Helpfulness
5
Clarity

Ledgend

5
Easiness
5
Helpfulness
5
Clarity

WHAT A LEDGEND BEST FORM TEACHER IN THE ENTIRE SCHOOL!!

5
Easiness
4
Helpfulness
5
Clarity

dead sound!!!!and a gud teacher

4
Easiness
5
Helpfulness
4
Clarity

Fantastic teacher with a brilliant mind, terrible lack of discipline though

4
Easiness
5
Helpfulness
3
Clarity

Him and mr Johnstone r da coolest

5
Easiness
5
Helpfulness
5
Clarity

coolest teacher eva.hes da best.mt

5
Easiness
2
Helpfulness
2
Clarity

1986-92 Dreadful teacher, couldn't keep control, learnt virtually nothing !

1
Easiness
2
Helpfulness
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Clarity

Very nice man but is completely wasted teaching maths. Not able to control a class unfortunately. No wonder I failed badly...

5
Easiness
5
Helpfulness
3
Clarity

Sound man.

5
Easiness
5
Helpfulness
5
Clarity

Mr Costello is lik da best teacher ever i lov him so much maths wud suck without him (",)

5
Easiness
5
Helpfulness
3
Clarity

he is such a sound man but seriously.........

4
Easiness
5
Helpfulness
4
Clarity

great man!! pure sound

1
Easiness
1
Helpfulness
1
Clarity

How can we get any work done if he won't stop starting a conversation with his favorite students? 25 mins of chatting and 20 mins of class!

4
Easiness
3
Helpfulness
4
Clarity

Great teacher, really interesting

5
Easiness
5
Helpfulness
5
Clarity

what a truely genuine man,i had him for a bit of jc,thanks Brian,i really mean it,great teacher!

5
Easiness
5
Helpfulness
3
Clarity

Sound man, just a pity he refuses to take control of his class. Sure some people dont want to work, but they make it difficult for the rest of us :(

3
Easiness
2
Helpfulness
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Clarity

i think hes a sound man i havent come across any faults yet

3
Easiness
5
Helpfulness
4
Clarity

mr c is da coolest teacher nd sounds

5
Easiness
3
Helpfulness
4
Clarity

Good teacher but really needs to keep control on his class. Sometimes very hard to get work done simply because he wont tell certain people to shutup

5
Easiness
3
Helpfulness
1
Clarity

Sound man but not a great teacher.

1
Easiness
1
Helpfulness
1
Clarity

Probably the most uninteresting teacher ever. He can't even start a class without having a long chat with his favorite students. A very poor quality teacher!

5
Easiness
2
Helpfulness
3
Clarity

Sound man though!

5
Easiness
5
Helpfulness
2
Clarity

Stands up and teaches himself for 45 mins

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Learn more about Sligo Grammar School

5-star
77%
4-star
11%
3-star
3%
2-star
1%
1-star
5%
Based on 884 Ratings
Sligo Grammar School is located in Clare, Clare with an average teacher rating of 4.31 stars. When comparing Sligo Grammar School's teachers to other teachers in the county of Clare, Sligo Grammar School's teachers are below the average of 4.45 stars. Sligo Grammar School ranks 9 amongst all High Schools in the county of Clare. Learn More