Caeser Cipher

The Caesar Cipher has a long history of usage, dating back to Julius Ceasar (100BC-44 BC). The cipher works by substituting for each letter the letter that is n letters further along the alphabet, where n is the key.

2025-10-10T15:28:48+01:00|Categories: Primary|

Tetrominoes

A polyomino is a plane geometric figure formed by joining one or more equal squares edge to edge. Polyominoes have connections with various themes in geometry, symmetry, tiling, perimeter, and area.

2025-10-10T15:28:58+01:00|Categories: Primary, Resources|

Pirate Game

Pirate Game This activity is not suitable for mobile phones. We recommend using a computer and full screen mode for a better experience. This is a long activity that mixes literacy and maths with storytelling and puzzles to solve. We recommend teachers to use it as a team activity and project it on a [...]

2025-10-03T15:54:35+01:00|Categories: Age 08-12, English, Gaeilge, Primary|

D24 – Origami Hat

Christmas Hat Origami Back to Advent Calendar Christmas Hat Origami Back to Resources Start with square paper and follow the instructions. Use a paper coloured on one side, or use a plain white one and colour it later. Use a large square to [...]

D22 – Pictoku

Christmas Pictoku Back to Resources Complete the grid by dragging the correct picture. No picture may appear twice in any row or column. Use the 'Check' button to verify your answers. Use the blue arrows to try different puzzles. Download a paper version instructions at the bottom of the page. [...]

D20 – programming

Flower watering programme Back to calendar Flower watering programme Back to Resources A lazy but clever elf wants to program his robot to take a nap while the robot waters his plants. Help him by correctly ordering the different commands. Use the ‘Check’ [...]

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