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How many trains can you make which are the same length as Matt's and Katie's, using rods that are identical?
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Charlie and Abi put a counter on 42. They wondered if they could visit all the other numbers on their 1-100 board, moving the counter using just these two operations: ×2 and -5. What do you think?
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Julia refines our model, and the interactivity offers a chance to simulate the outbreak of an infectious disease, recognising that not everyone is the same.
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In the 2020 Olympic Games, sport climbing was introduced for the first time, and something very interesting happened with the scoring system. Can you find out what was interesting about it?
This article looks at levels of geometric thinking and the types of activities required to develop this thinking.
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In 15 years' time my age will be the square of my age 15 years ago. Can you work out my age, and when I had other special birthdays?
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Predict future weather using the probability that tomorrow is wet given today is wet and the probability that tomorrow is wet given that today is dry.
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Find the frequency distribution for ordinary English, and use it to help you crack the code.
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Can you find the hidden factors which multiply together to produce each quadratic expression?
