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STEM (Science, Technology, Engineering, Maths) plays an integral role in CETNS. We participate in numerous local and national initiatives.

Stem 20-21

Our Young Engineers Award winners Umiya, Daniel, Maggie and Ashkan from 4th class received their prizes today from Engineers Ireland.

We are looking forward to learning to code with Photon, our new school robot!


Stem 19-20

National Young Engineers Award for CETNS pupils

– May 2020

Congratulations to Umiya, Maggy, Daniel and Ashkan (3rd classes) for achieving Highly Commended in the National Young Engineers Awards.

They won a super cool Photon Robot for our school!

Watch the Young Engineers Award Virtual Prize Giving Ceremony here. CETNS are on first at 6:31.

YEA Prize Giving Ceremony - https://www.youtube.com/watch?v=ORfM_GMsMMk&t=165s


This creative team, which includes a green team member, was inspired by climate change. Their project idea was an underground wireless electric car charger which could be installed in every parking space in every car park. They decided to work on this as they noticed there are few electric car charging stations and all require bulky cables to operate.

There will be a virtual award ceremony on the 20th of May.

Young Engineer's Award Projects – December 2019

3rd & 4th classes recently entered their projects into the Young Engineer’s Award. The classes were very busy brainstorming ideas, researching, investigating properties of materials, designing and finally constructing prototypes that will positively improve our community. Engineers Ireland organised for an Engineer visit to each class. Each group presented their project to the engineer and answered lots of follow up questions. The results will be announced during Engineers Week 29th of February to 6th of March.

Engineer Visit – December 2019

An engineer named Michael Dowling from CS Consulting visited our class today. He spoke to us about his job. I was interested to learn that buildings change when they are made. We then presented our projects. For my project I designed an electric factory that collects electricity from spinning bikes from 2 gyms to help the environment. I really enjoyed the engineers visit.

Zainab, Paula's 3rd Class

5th & 6th Class Intel Mini-Scientists – November 2019

Congratulations to children, parents and staff for all their hard work in preparing for the Intel Mini-Scientists competition last Friday week. We had one of the most enjoyable days in the school where we learnt so much from each other and all children visiting the various project stands got to ask many questions and see many experiments. Well done to everyone involved, the judges were particularly impressed with how well each of the groups presented their information on the day.

Congratulations to Scot, Luke & Umer who were placed 2nd for their project ‘Are you left-sided or right-sided?’

Aamna, Mysha, Maheen & Shaheera placed 1st with their project ‘Spy Apps, what do parents really know about them?’

The girls will be going to the next round in the Croí Building December 6th. Go n-éirí libh!

See some photos of the event here http://www.cetns.ie/Page/Class-News/1770/Index.html

Super news! CETNS has achieved the 2019 SFI Discover Science and Maths Award – June 2019

See message below from the Discover Primary Science & Maths Team about our award. Congratulations to all the children, staff & parents and a special thanks to the STEM subcommittee for all their hard work.

Congratulations! Your school has achieved an SFI Discover Science and Maths Award for the 2018/2019 academic year. We have evaluated your Log of Evidence and we are satisfied that you have met all the criteria for the Plaque of STEM.
Your school has provided evidence of children's engagement with STEM in the following areas:

  1. Science
  2. Technology
  3. Engineering
  4. Maths
  5. STEM Showcase

Here is some feedback on your Log of Evidence:
Really interesting use of maths to capture how students spend their free time and fantastic bird feeder investigations. It was wonderful to see the children sharing their work so enthusiastically with others at ESB Science Blast and Intel Mini Scientist. Great team effort by everyone and keep up the good work! Congratulations on a well deserved award!
Again, many congratulations to you, your students and your colleagues on achieving your SFI Discover Science & Maths Award in 2019.

Stem 18-19

February Stem Challenge Projects











Science Blast – 7th March 2019









Engineers Week – 4th – 8th March 2019

February STEM Challenge - Engineers Week 2019

Ireland and everything Irish is our STEM theme for February as preparation for our annual Seachtain na Gaeilge celebration. All our February STEM projects will form an exhibition for parents during Engineers Week which will place from 4th to 8th March. As always, we encourage everyone to enter either in groups or individually.

Engineers Ireland Publication

Our Monthly STEM challenge was mentioned on page 6 of Engineers Ireland's Classroom Challenge Pack 2019.


Manga High Workshop – Feb 2019

4th class recently had a very informative ICT maths workshop hosted by Chris from Manga High. They learnt all about what you have to do to get each type of medal, bronze, silver & gold. He taught the teachers how to keep activities classroom assigned. If you want gold you had to get every single question right & be on the difficult level & get 10 ‘on fire’ questions right. You can only get a bronze on your first go! There are easy, medium, hard & extreme levels. You have to get 3 questions right to go up a level & if you 2 wrong you go down a level. We love it, go on give it a try!

Finn & Cathal, Andreas’ 4th class

Science Workshop – January 2019

Designer Minds scientists visited to host a science workshop with 3rdand 4th classes in January. The workshops introduced the children to the area of biology, specifically bacteria. The children carried out their own experiments using nutrient agar plates to test whether antibacterial handwash kills bacteria. The children will observe bacteria growing over the course of a week. We will be very interested in their results!

Young Engineers Award Projects – December 2018

3rd and 4th classes were busy bees in December working on their Young Engineers Award projects. Take a look at some of the projects that were submitted!

Last Thursday we had a visit from an engineer, Anjena, who works with Nicholas O’Dwyer Engineering. Right now she’s working on a new design for a water treatment plant in Sligo. We presented the projects we did for Young Engineers Award. Our group built a bridge over the Ashtown Train Station & she told us how to add side supports. The point of the projects is to look at the community and see what’s not working and make improvements. We then needed to make a 3-D model so we used K’nex for our bridge. She told us the sides and slope needed to improve and she helped us by showing us the side supports.”

By Matthew 3rd







Intel Regional Finals – 5th Dec 2018

On the 5th Dec 2018, we went to ITB to compete in the Intel Mini Scientist competition. Three of us were invited last year so we had a good amount of experience. On the day, there were 90 different schools battling for one of the 16 places in the national finals. Our project was on biometrics. Conor Walsh (me), Charlie Coffey, Jack Brady and Abdullah Anwar made the project. We were judged around 9:45am and the judge loved our project! She stayed around for a long time to listen to every last word we had to tell her! I had a good feeling that we were going into the next round, At 11:30am, we had a science demo by a scientist named “Scientific Sue”. She did the same show she did last year on bubbles. Even though she had the same content, it was fun to watch. After lunch it was time for the results. We didn’t make it in, but a few of the kids we were chatting to made the cut. Even though we didn’t make it in, I still had a great day. Most people who viewed our project liked it and wished us luck.

Thanks to Liz for giving us the opportunity to compete in this competition and thanks to our parents for arranging meet-ups and waiting with us on the day.

By Conor Walsh (Liz, 6th Class)

Intel Science Fair – 15th November 2018

The Intel mini scientist exhibition took place in the hall on the 15thand a great day was had by all. Fifth and Sixth class children presented their projects and the rest of the school learnt all about their various experiments and findings. Many parents joined us on the day along with the Intel judges. Congratulations to our winners but particularly a very special congratulations to all the children who presented on the day, a lot of work went into the preparation for the day and we hope you are as proud of yourselves as we are. You can view some photos of the day http://www.cetns.ie/News/Science-Fair-2018/814/Index.html Thank you to all who helped with this event,

The winners were Charlie, Conor, Abdullah, and Jack from Liz's class with their project about Biometrics.

The runners up were the Mysha, Shaheera, Aamna and Maheen from Aoife's class with their project about Mnenomics.

Well done.

PICs of SCIENCE Fair here

Marine Biologist Visit for Science Week – Nov 2018

A workshop took place in 3rd class all about marine litter. Lorraine, a marine biologist recently spent 6 months working in the oceans beside Hawaii helping to clean up plastic. She told us facts about how big sharks are. She also told us about a whale that died and scientists found 11 plastic bags inside the whale’s stomach. By 2050, she said there would be more plastic in the ocean than fish! So I am going to be more careful with plastics to stop marine litter.

By Talha

The Whole School STEM Project returns!

The STEM project for January is to make any winter themed creatione.g. snowflake using matchsticks and marshmallows, igloo using sugar cubes, a snowball launcher. The options are endless! We look forward to seeing the fantastic projects.


Here are some Roald Dahl Day STEM Projects.




As National Space Week runs from the 4th to 10th of October, our STEM project for October will be to make a space themed creation. As always we look forward to seeing your wonderful ideas!

Fantastic creations for our Space themed Stem Challenge






May STEM projects - Garden Decorations

IMG_8156.JPG Fairy House by Isobel, Jill's 3rd IMG_8161.JPG Floral PomPom by Anastasia, Ruth's Senior Infants

IMG_8165.JPG Basketball Game by Alex, Ruth's Senior Infants

Ireland’s Ingenious Engineers Show with Scientific Sue.

This highly creative and exciting science and engineering show explores some of the amazing scientific discoveries and engineering feats endeavoured by some of our amazing Irish Scientists over a period of 350 years: Which of the amazing engineers was responsible for the creation of hot chocolate? The discovery of carbon dioxide? Who found out how to turn a gas into liquid? This process now allows us to send astronauts and rockets into space? Whose invention saved the life of Neil Armstrong the year before he landed on the moon? Which field of engineering will give us the excuse to make ice cream? Explode gases? Race balloons? Save people’s lives?

As always, lots of volunteers will be needed to help Scientific Sue on, yet another one of her mind-boggling, energetic journeys of scientific discovery.


April STEM projects - What can you make out of a box?
A 4 Roomed Dollhouse by Sanvi Conor's 2nd class
A Quiz to Win a Prize by Patricia (Susan's junior Infants)
Theatre Royal starring Phantom of the Opera! by Aisling (Aidan's 4th class)
A Guillotine that uses a pulley to move! by Camille (Karen's 3rd class) as part of her Genius Hour Project on France
Football Subbuteo by Conor (Aoife and Mary's 1st)


There's great engineering going on in classrooms all over the school. Fantastic open ended design and make activities.

1st - Aahan's football stadium as part of genius hour project (3rd)
2nd& 3rd - Matteo's cardboard city as part of genius hour project (3rd)
stem-bridge 2.jpgstem-bridge.png
4th & 5th - bridges constructed by 1st class
stem-liz's 6th.jpg
6th - Fairtrade village collaboratively designed and constucted by Liz's 6th class
7th & 8th - amazing building during aistear in our infant classes
9th - Zachary building a model of studio tram ride in Eurodisney

March -

We had some great Leprechaun Traps made in our March Stem Projects.


IMG_7337-lep.JPG JJ


Anais & Rian who managed to catch a Leprechaun!


Josh, James & Jake composed a rhyming story.

IMG_3374-lep.JPG Aoife

IMG_7405-lep.JPG Sanvi



IMG_3025_ft.JPGHere is Aoife with her completed Fairtrade STEM project - A fairtrade banana piñata. It also has some fairtrade treats inside for her classmates. Well done Aoife.

Village built by 6th Class


IMG_4808_ft.JPG Josh , James & Jake. Well done boys.


Here are some photos of the STEM projects for January. The volcano and planets are made from icing!



  • In 2017/2018, CETNS will participate in Science Foundation of Ireland Discover Science & Maths Programme.
  • We use our school grounds to explore science. We are lucky to have an abundance of habitats and the following areas of interest: the school fruit, vegetable and herb garden, pond, chickens, polytunnel, orchard, oudoor classroom, multisensory garden and our school field which is planted with native trees and shrubs. Teachers use an Environmental Audit of the school locality to show how our school grounds can be used for the teaching of Science.
  • We focus on hands-on science investigations as part of classroom experiment.
  • We participate in National STEM weeks - Space, Science, Maths, Computer Science and Engineering.
  • We have introduced a monthly whole school STEM challenge!
  • We invite science speakers to our school.
  • We organize visits to accredited Science Centres - Dublin Zoo, The National School of Sailing Dun Laoghaire, Imaginosity, Sealife Aquarium
  • We attend science shows – e.g. RDS Science Show
  • 5th & 6th Class participate yearly in the Intel Mini Scientist Competition
  • We include STEM as part of our afterschool programme.
  • We participate in the Green Schools Programme as part of the Environmental Awareness strand. The theme of our 8th flag is Marine Environment. We will be looking at marine eco-systems, their threats and the work being done to save them. See Green School Action Plan on Green School Noticeboard for more details.
  • We celebrate national environmental awareness days e.g. National Tree Week and go on a leaf hunt in our school field
  • We participate in Innocent Sow and Grow programme.
  • We work with scientific organisations .i.e. Science Foundation Ireland, Steps Engineers Ireland, Teagasc in Ashtown, Blackrock Observatory
  • We work on our Active Flag programme which linked in with the Living Things strand.


  • We use technology as part of our school work.
  • We have Interactive Whiteboards in every classroom and a class set of both ipads and laptops.
  • To continue working on basic programming initiatives i.e. Beebot, Scratch, Scratch Junior.
  • See CETNS Digital Schools Strategy document for more details.


  • We do lots of design and make activities e.g. making models (exploring, planning, designing, making, evaluating) – integration with Art & SESE.
  • We have introduced a monthly STEM Family Project!
  • We participate In ENGINEERS WEEK - http://www.engineersweek.ie/
  • To hold a whole school engineering challenge
  • We invite engineer guest speakers to the school – parental involvement & STEPS
  • To introduce a monthly STEM challenge
  • Useful engineering websites: DiscoverE - http://www.discovere.org/dreambig/activities
  • STEPS - https://www.steps.ie/teachers/primary.aspx


  • We use a variety of maths investigations: real life maths investigations, puzzles, maths art, cracking the code etc
  • We participate in National Maths Week and use resources on http://www.mathsweek.ie/
  • We use maths skills and knowledge as part of science e.g. measuring distances, capacity, weight, recording and analyzing data. Using maths operations: ratio, percentages, averages.
  • We do Maths Trails around our school.
  • Useful maths websites:maths playground - https://www.mathplayground.com/Khan academy - https://www.khanacademy.org/math
  • Manga High - https://www.mangahigh.com
  • IXL Maths - https://ie.ixl.com/math/

STEM Showcase

We host events where children present and explain their work:

  • We host an INTEL Mini Scientist exhibition during Science week where parents and the wider community are invited to learn about projects our 5th & 6th classes.
  • We encourage children to present their science work to other classes.
  • We host a monthly Family STEM Project exhibition.

STEM Family Project

Castleknock Educate Together has introduced a monthly STEM Family Project. Parental involvement is a very important part of our ethos and we feel STEM Family Projects are the perfect way to create meaningful connections between the school and home for science, technology, engineering and maths processes.

The Engineering Design Process is:
1. Ask - what’s the problem?
2. Imagine- choose a solution.
3. Plan - draw it.
4. Create - make it.
5. Improve - make it better.

January’s challenge was to create an object using sweets in its construction! Teachers were blown away by the creativity and enthusiasm shown by the families of CETNS. We also received lots of very interesting photos of the stages of the engineering process.

February’s STEM Family Project is to create a Fairtrade themed object using recyclable materials. This challenge will link in with our whole school focus on Fairtrade this month.

We look forward to exhibiting our February STEM Family Projects in our school during Engineers Week (26th Feb - 2nd March)

Castleknock Educate Together NS,
Beechpark Ave,
Dublin 15

01 821 9331

Green School
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