Length/distance

There are 64 NRICH Mathematical resources connected to Length/distance
Discuss and Choose
problem
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Discuss and choose

Age
5 to 11
Challenge level
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This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

A question of scale
problem
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A question of scale

Age
14 to 16
Challenge level
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Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?
Little Man
problem
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Little man

Age
5 to 7
Challenge level
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The Man is much smaller than us. Can you use the picture of him next to a mug to estimate his height and how much tea he drinks?
How far does it move?
problem
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How far does it move?

Age
11 to 14
Challenge level
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Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects the distance it travels at each stage.

Up and across
problem
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Up and across

Age
11 to 14
Challenge level
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Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its vertical and horizontal movement at each stage.

Shaping It
problem
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Shaping it

Age
5 to 11
Challenge level
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These pictures were made by starting with a square, finding the half-way point on each side and joining those points up. You could investigate your own starting shape.
Sizing them Up
problem
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Sizing them up

Age
5 to 7
Challenge level
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Can you put these shapes in order of size? Start with the smallest.

Place your orders
problem
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Place your orders

Age
11 to 14
Challenge level
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Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?
All in a jumble
problem
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All in a jumble

Age
11 to 14
Challenge level
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My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
Rolling Around
problem
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Rolling around

Age
11 to 14
Challenge level
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A circle rolls around the outside edge of a square so that its circumference always touches the edge of the square. Can you describe the locus of the centre of the circle?