STAFF | Powerstown Educate Together National School, Tyrrelstown, Dublin 15

Staff at PETNS!

Our Principal

Helena Trench​​ 

Helena is the Principal of Powerstown ETNS. Helena is the Leader of Learning within the school and promotes a positive learning environment that encourages communication and​​ respect between staff, parents and pupils. Helena ensures that all staff and parents have high expectations of the pupils and that students' progress is continuously monitored. Helena promotes the involvement of students in decision making process and ensures they have the opportunity to take on positions of responsibility and leadership within the school. Helena emphaises the need for parental involvment in the school and encoruages parents to participate in parent and child workshops, shared reading, maths for fun, science for fun, adult education and any other skill or interest set that parents would like to share.
Helena has a Bachelor in Education and a Masters of Science in Technology and Education from Trinity College Dublin. She worked in all class from Junior Infants to 6th class and also worked as Home School Liaison Officer in Dublin City Centre. Helena then worked as Deputy Principal in Swords before commencing employment in Powerstown ETNS in June 2011.

Helena can be contacted at​​​​ or on 018272018

Junior Infant Team

Hannah Greene

Chestnut Class Teacher

Hannah has a Bachelor of Education Degree with specialism in psychology from St Patrick’s College​​ Drumcondra, where she studied for four years. She is from Dublin and loves to support the GAA team.

Hannah is creative and loves music and dance. She also studied dance professionally for two years before she became a teacher. She plays piano and attends dance classes at the weekend!

Outside of school, Hannah is very interested in fitness and travelling. She has traveled to many different countries all over the world where she enjoys experiencing new cultures and new foods.

Hannah is looking forward to a​​ fantastic year of fun and learning ahead.

Hannah can be contact at or 01 8272018

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Diarmaid Elliffe​​ 
Ash Class Teacher

Diarmaid is a sports fanatic with a particular love of GAA and Swimming. In his youth he was part of the Swim Ireland National Squad, however he now just competes in sea swims and triathlons. He also have a love of childrens' literature with David Walliams becoming his favourite author.

He completed a Commerce degree in NUI Galway before completing a Post Graduate Masters in Education. He has worked as a Business Anaylst in the financial sector before deciding that teaching was the right career choice for him. He is very excited about joining Powerstown ETNS and is looking forward to a great year ahead.

Diarmaid can be contacted at or at the school on 01 8272018.



Anna Karman


Anna is our Special Needs Assistant.

“I’m a member of Powerstown Educate Together N.S. team since 2013. Originally I’m from Poland. I moved to Dublin in​​ 2004. I’m an enthusiastic person who loves to help and assist the children to reach their potential. On my free time I enjoy cycling. Travelling; learning different cultures and taking pictures are my passion.”

Anna graduated from Pedagogical University in​​ Poland, where she studied Pedagogy and specialized in Primary Teaching. She has FETAC level 5&6 in Montessori Education, and FETAC level 6 as Special Needs Assistant.


Pamela McGrath

Pamela works with the Birch class from 9am until 12.30pm daily. ​​ Pamela McGrath is a Special Needs Assistant in the Birch Class.  She has recently received a distinction in QQI (FETAC) Level 5 Special Needs Assisting.  She has a wide range of experience in business and in childcare and is looking forward to spending time​​ with the Birch Class.

She is a big Rugby fan and loves to attend as many Leinster Rugby games as possible!



Senior Infant Team

Gráinne Ryan

Oak Class Teacher

Gráinne is a dedicated sports lady, who plays Camogie for Na Fianna GAA club and for the​​ Dublin Ladies Camogie team. She has also worked as a GAA Development Officer.
Gráinne completed and Arts Degree in St. Patrick's College and continued on to complete Post Graduate Degree in Teaching. Gráinne worked in numerous schools in Dublin before joining our​​ staff in August 2012.
Gráinne can be contacted via email: or 01 8272018. 

Naosán Moore

Sycamore Class Teacher

Naosán is from Mullingar and is a music fanatic who loves playing and performing pop music and his own​​ songs. He also has led a variety of choirs and have supported them on keyboard. He is a huge sports fan and have played soccer, gaelic football and tennis from a young age. 


He has just completed his Bachelor of Education degree from St. Patrick's College, DCU. Naosán is thoroughly looking forward to the year ahead being the class teacher for the Sycamore Class!




Anita Woods

COS Teacher


Anita Studied Equine Science at the University of Limerick. She went on to work in a number of Laboratories before deciding to return to education. Anita has just completed a Professional Masters in Primary Education.

Anita has a specific interest in Science and enjoys travelling.

Anita can be contacted at or 01 8272018


Luise Lassahn


Hi, my name is Luise. I'm a Special Needs Assistant in the Holly Class.
I'm from Berlin, Germany. I completed a​​ FETAC Level 5 in Special Needs Assisting last year, having previously studied Social Work, obtaining a bachelor degree in 2014. I spent some time as a social worker in Berlin, as well as working in an orphanage. I have lived in Ireland for just over two years.
My big interests are travelling, art and crafts, sewing and dancing.
I love working with children and I´m delighted to be part of the staff at Powerstown

First Class Team


James Hawe

Rose Class Teacher

James is a big rugby and cricket fan and​​ loves to cycle whenever he can. He is looking forward to getting involved in the after school sports fun! Outside the world of sport James loves art, music and reading.

James has a Bachelor of Arts in sociology from Trinity College and has just completed a​​ Professional Masters of Education.

James can be reached at or at the school on 01 8272018.

Hannah McDonnell

Willow Class Teacher

Born in Dublin and raised in Country Clare,​​ Hannah lived and worked abroad in Scotland and Australia for four years, before completed her Bachelor of Education in DCU, with a major specialism in Early Childhood Education. A keen lover of music and the arts, Hannah is excited to have the Willow class​​ as her first class in Powerstown ET and is looking forward to all the fun that will be had. In her spare time Hannah likes to cook, travel, swim, read and drink nice coffee. 

Hannah can be reached at or at the school on 01 8272018.

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Aoife McGonigle

COS Teacher


Aoife has a Bachelor of Arts in History and Archaeology, a Masters in History and worked as an archaeologist, historian and museum education officer before attending Froebel College of Education. Here she received a post-graduate degree in primary​​ education. Aoife worked in Cavan and Dublin before joining us in August 2014.
Aoife loves history and enjoys visiting museums, galleries and cultural events.


Second​​ Class Team


Stephen Flanagan

Hazel Class Teacher

Stephen is the Science Co-ordinator in the school.

Stephen has a huge interest in music and hopes to bring it into the classroom as much as possible. He plays the guitar, sings and am is​​ currently teaching himself the ukulele! He also loves to run and has a passion for computers and technology.

Stephen completed an Arts degree and a Masters degree before returning to college to obtain my diploma in teaching.

I can be reached at​​ or at the school on 01 8272018.


Aoife Connaughton

Lime Class Teacher

Aoife completed the new four year undergraduate B.Ed. course at St.Patrick's College, Drumcondra and graduated in​​ 2016. She is from Co.Mayo and has a huge interest in the GAA. (Mayo for Sam!) She plays Gaelic football and has received three All Ireland Medals with her secondary school and college teams. She loves to coach underage teams, work at sports camps and to share her enthusiasm for sport with the youth of today.

She is also interested in music, singing, athletics and dance.

She is looking forward to the year ahead and getting to know the children, staff and parents of Powerstown Educate Together National School.

Aoife can be contacted at or at the school on 01 8272018.


Róisín Grimes

COS Teacher

Róisín has a Bachelor of Arts degree in European Studies from the University of Limerick where she studied Spanish, History, Law and​​ Sociology. She worked in marketing and PR for Tourism Ireland in Canada before attending Marino Institute of Education. She received a post graduate degree in primary teaching.

Róisín loves to read, travel and cheer on her native Mayo in GAA. She enjoys the outdoors and is working towards achieving her blue belt in kick boxing.

Róisin can be reached at or at the school on 01 8272018.

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Third Class Team


Rónán​​ Bennett

Redwood Class Teacher

Ronan is from a little village called Conna in Co. Cork! He has a Bachelor of Education from Mary Immaculate College, Limerick.
Literacy and Visual Art are two of his biggest interests in both his professional and personal life and he
can’t wait to share them with his class at Powerstown to bring some life and colour to theur day!

Acting is also something he is passionate about and when he is not rehearsing for a production, he is in
the audience watching other actors do their​​ thing. Being dramatic can be a good thing sometimes!

Over that past few years, he have spent time volunteering in The Philippines and The United States
and he hopes the contact he keeps with the organisations he is involved with can benefit the children in
his class for the coming year.​​ 

Ronan can be reached at or at the school on 01 8272018.


Shauna O'Brien

Rowan Class Teacher

Shauna is from Tipperary, The Premier County! (Up Tipp!)

She has a Bachelor of Education with​​ Specialism in Music Degree from Mary Immaculate College Limerick where she studied for 4 years.

Shauna loves music. She have been part of and conducted various choirs over the years and she has all her grades for the flute. She is currently working on her​​ piano and guitar skills!

Outside of school Shauna loves travel and food. SHe has worked in and visited many countries such as America and South East Asia where she experienced different food and cultures.​​ 

Shauna can be contacted at​​ or at the school on 01 8272018.

Aisling O’Neill

COS Teacher

Aisling studied Irish and Religious Studies in Mater Dei before completing a Master's in Primary Education from St. Patricks College in Drumcondra. Aisling is​​ originally from Blanchardstown and plays both Camogie and football. She enjoys arts, crafts, sports and Irish dancing.  

Aisling is really looking forward to working with the children, staff and parents in Powerstown for a another year jam packed with fun​​ and learning. 

Aisling can be contacted via email at or 01 8272018.