Some websites that will help you develop your mathematical skills:

1) Another great cross-curricular website: 
https://www.khanacademy.org/

2) Padlet Maths Resource website that can be uploaded: 
https://padlet.com/ffarry1/firsec  
(1st and 2nd)

https://padlet.com/ffarry1/thifou
(3rd and 4th) 

https://t.co/K1IF6z78Vt?amp=1 
(5th and 6th) 

3) Daily10 Maths Challange 
https://www.topmarks.co.uk/maths-games/daily10 

4) Code Breaking Website: 
https://www.mathsweek.ie/2016/puzzles/code-breaking-for-young-secret-agents 

5) Maths through art; 
https://www.mathsweek.ie/2016/puzzles/maths-art
https://www.artfulmaths.com/mathematical-art-lessons.html

6) Maths puzzles
http://www.cimt.org.uk/resources/puzzles/index.htm 

7) Scoot Game Cards- (more available for different class levels through on these websites)
https://www.ffc8.org/cms/lib/CO01900636/Centricity/Domain/836/Two%20Step%20TAsk%20Cards.pdf
https://www.twinkl.ie/resource/us2-m-419-place-value-math-challenge-cards    

8) Maths Week Ireland 2019 Website  
https://www.mathsweek.ie/2019/ 

9) Funny video, ask students to spot the mistakes! Great for Senior Classes
https://www.youtube.com/watch?v=lzxVyO6cpos