List

Year 6 Conjecturing and generalising

Doplication
problem

Doplication

Age
7 to 11
Challenge level
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We can arrange dots in a similar way to the 5 on a dice and they usually sit quite well into a rectangular shape. How many altogether in this 3 by 5? What happens for other sizes?
Diagonally Square
problem

Diagonally Square

Age
7 to 11
Challenge level
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Ayah conjectures that the diagonals of a square meet at right angles. Do you agree? How could you find out?
Round the Four Dice
problem

Round the Four Dice

Age
7 to 11
Challenge level
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This activity involves rounding four-digit numbers to the nearest thousand.
Round the Three Dice
problem

Round the Three Dice

Age
7 to 11
Challenge level
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What happens when you round these three-digit numbers to the nearest 100?
Round and round the circle
problem

Round and round the circle

Age
7 to 11
Challenge level
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What happens if you join every second point on this circle? How about every third point? Try with different steps and see if you can predict what will happen.
Four Go
problem

Four Go

Age
7 to 11
Challenge level
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This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?
Counting Cogs
problem

Counting Cogs

Age
7 to 14
Challenge level
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Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?
Button-Up Some More
problem

Button-Up Some More

Age
7 to 11
Challenge level
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How many ways can you find to do up all four buttons on my coat? How about if I had five buttons? Six ...?
Number Lines in Disguise
problem

Number Lines in Disguise

Age
7 to 14
Challenge level
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Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
Finding 3D Stacks
problem

Finding 3D Stacks

Age
7 to 11
Challenge level
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Can you find a way of counting the spheres in these arrangements?