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New Activity

The latest activity to be updated on this site is called "Cracked Clock Quiz" (A self marking set of ten mathematical questions about a clock which cracked!).

So far this activity has been accessed 22309 times and 70 people have earned a Transum Trophy for completing it.

Cracked Clock Quiz

You might think the Cracked Clock Quiz is all about telling the time, but actually it’s much more than that! This exercise helps you get better at problem solving and thinking logically, which are important skills for maths and for life.

By working through these puzzles about the numbers one to twelve, you will train your brain to spot patterns, look for clever shortcuts, and use creative strategies to crack tricky questions. These are exactly the kind of skills you’ll use in real-life situations, whether you’re planning a journey, working out the best deal when shopping, or playing games that need logical thinking.

Getting good at numeracy and problem solving means you’ll feel more confident with all sorts of maths questions, not just the ones about clocks! Plus, you might even find you enjoy the challenge and the sense of achievement when you crack a particularly tough puzzle. Keep going, you’ll be surprised at what your brain can do!


Featured Activity

Without Lifting

Without Lifting

Can you draw these diagrams without lifting your pencil from the paper? This is an interactive version of the traditional puzzle. Some diagrams are possible while others are not. What is the rule?

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AI is revolutionizing the job landscape, prompting nations worldwide to prepare their workforces for dramatic changes. A University of Georgia study evaluated 50 countries’ national AI strategies and found significant differences in how governments prioritize education and workforce training. While many jobs could disappear in the coming decades, new careers requiring advanced AI skills are emerging. Countries like Germany and Spain are leading with early education and cultural support for AI, but few emphasize developing essential human soft skills like creativity and communication—qualities AI can't replace. more...

The AI that writes climate-friendly cement recipes in seconds

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Study deepens understanding of cell migration, important for potential medical advances

A new study integrated mathematical modeling with advanced imaging to discover that the physical shape of the fruit fly egg chamber, combined with chemical signals, significantly influences how cells move. Cell migration is critical in wound healing, immune responses, and cancer metastasis, so the work has potential to advance a range of medical treatments. more...

In nature's math, freedoms are fundamental

Scientists have developed a unified theory for mathematical parameters known as gauge freedoms. Their new formulas will allow researchers to interpret research results much faster and with greater confidence. The development could prove fundamental for future efforts in agriculture, drug discovery, and beyond. more...

A chip with natural blood vessels

Miniature organs on a chip could allow us to do scientific studies with great precision, without having to resort to animal testing. The main problem, however, is that artificial tissue needs blood vessels, and they are very hard to create. Now, new technology has been developed to create reproducible blood vessels using high-precision laser pulses. Tissue has been created that acts like natural tissue. more...

A faster, more reliable method for simulating the plasmas used to make computer chips

Researchers developed a faster, more stable way to simulate the swirling electric fields inside industrial plasmas -- the kind used to make microchips and coat materials. The improved method could lead to better tools for chip manufacturing and fusion research. more...

AI is good at weather forecasting. Can it predict freak weather events?

Scientists found that neural networks cannot yet forecast 'gray swan' weather events, which might not appear in existing training data but could still happen -- like 200-year floods or massive hurricanes. more...

Latest Newsletters:

Have you read the latest Transum Newsletter or listened to the podcast?

July 2025

🎂 Amazing Puzzle
🎂 New Maths Games
🎂 Semaphore
🎂 Area Mazes
🎂 Roman Dodecahedrons
🎂 School's Out

July's Newsletter :: Podcasts

News headlines board


June 2025

🧩 Jigsaw Puzzle
🧩 New Resources
🧩 Example, Non Example
🧩 Fraction Wall
🧩 Advanced Starter
🧩 Environment Day

June's Newsletter :: Podcasts


May 2025

💎 Hidden Gems
💎 Blue Teeth
💎 Pythagoras with Surds
💎 Problem Quadratics
💎 Outdoor Maths
💎 Don't Trust Primes

May's Newsletter :: Podcasts


April 2025

✏️ Easter Eggs
✏️ Statistics Supplied
✏️ Prime Prevention
✏️ Pen or Pencil?
✏️ Doon Ow!
✏️ April Fool

April's Newsletter :: Podcasts


March 2025

🏆 Sharing Trophies
🏆 Algebraic Unity
🏆 Setting Scales
🏆 Counting To and Fro
🏆 Octagon Loops
🏆 Spin The Wheel

March's Newsletter :: Podcasts


February 2025

🟰 8! minutes
🟰 Triangles in Hexagons
🟰 Moving Circle Parts
🟰 Tree Diagrams
🟰 Global Correlation
🟰 German Shape Names

February's Newsletter :: Podcasts


January 2025

⌛ Teaching the wrong class
⌛ Sum of the cubes
⌛ Camp Bosrow
⌛ Sorting Shapes
⌛ The 1% Club
⌛ Suneung

January's Newsletter :: Podcasts


December 2024

🎄 Prancer's Walk Puzzle
🎄 Christmas Tree Light Sum
🎄 New Video
🎄 Quartiles Exercise
🎄 Advent Calendar
🎄 Nöel Joke

December's Newsletter :: Podcasts


November 2024

🎇 Fictional Planets Puzzle
🎇 Pictograms
🎇 Two-step Percentages
🎇 Odd Scatter Out
🎇 Quartile Quandary
🎇 Maths Joke

November's Newsletter :: Podcasts


October 2024

👻 Pumpkin Price Puzzle
👻 Diophantine Equations
👻 Got it, I got it!
👻 World Poetry Day
👻 History of Maths
👻 NotebookLM Wow

October's Newsletter :: Podcasts


September 2024

🎞️ Winter Draws On
🎞️ Heron's Formula
🎞️ Maths Minds
🎞️ Back To School
🎞️ Ramanujan Film
🎞️ Stars in Solar System

September's Newsletter :: Podcasts


August 2024

🏅 Three Numbers Puzzle
🏅 Fraction Foundations
🏅 Matching Activities
🏅 Holiday Maths
🏅 Olympic Puzzle
🏅 Earth's Circumference

August's Newsletter :: Podcasts


Previous Newsletters

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