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Method in multiplying madness?
Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?
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Frogs
How many moves does it take to swap over some red and blue frogs? Do you have a method?
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Fence it
If you have only 40 metres of fencing available, what is the maximum area of land you can fence off?
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Interactive spinners
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
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Crossed ends
Crosses can be drawn on number grids of various sizes. What do you notice when you add opposite ends?
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Keep it simple
Can all unit fractions be written as the sum of two unit fractions?
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How much can we spend?
A country has decided to have just two different coins, 3z and 5z
coins. Which totals can be made? Is there a largest total that
cannot be made? How do you know?
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Charlie's delightful machine
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
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Your number was...
Think of a number and follow my instructions. Tell me your answer, and I'll tell you what you started with! Can you explain how I know?
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What numbers can we make?
Imagine we have four bags containing a large number of 1s, 4s, 7s and 10s. What numbers can we make?
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Forwards add backwards
What happens when you add a three digit number to its reverse?
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Farey sequences
There are lots of ideas to explore in these sequences of ordered fractions.
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Stars
Can you work out what step size to take to ensure you visit all the dots on the circle?
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Property chart
A game in which players take it in turns to try to draw quadrilaterals (or triangles) with particular properties. Is it possible to fill the game grid?
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Route to infinity
Can you describe this route to infinity? Where will the arrows take you next?
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Fibonacci surprises
Play around with the Fibonacci sequence and discover some surprising results!
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Rhombus it
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.