Symmetry

There are 72 NRICH Mathematical resources connected to Symmetry
Troublesome Dice
problem

Troublesome Dice

Age
11 to 14
Challenge level
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When dice land edge-up, we usually roll again. But what if we didn't...?
Exploded Squares
problem

Exploded Squares

Age
5 to 7
Challenge level
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This practical activity challenges you to create symmetrical designs by cutting a square into strips.
Rose
problem

Rose

Age
16 to 18
Challenge level
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What groups of transformations map a regular pentagon to itself?
Attractive rotations
problem

Attractive rotations

Age
11 to 14
Challenge level
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Here is a chance to create some attractive images by rotating shapes through multiples of 90 degrees, or 30 degrees, or 72 degrees or...
Counters in the middle
problem

Counters in the middle

Age
7 to 11
Challenge level
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This task depends on groups working collaboratively, discussing and reasoning to agree a final product.
Drawing Celtic Knots
problem

Drawing Celtic Knots

Age
11 to 14
Challenge level
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Here is a chance to create some Celtic knots and explore the mathematics behind them.
Trominoes
problem

Trominoes

Age
11 to 16
Challenge level
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Can all but one square of an 8 by 8 Chessboard be covered by Trominoes?
Tiles in a public building
problem

Tiles in a public building

Age
7 to 11
Challenge level
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What is the same and what is different about these tiling patterns and how do they contribute to the floor as a whole?
Animated Triangles
problem

Animated Triangles

Age
5 to 7
Challenge level
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Watch this "Notes on a Triangle" film. Can you recreate parts of the film using cut-out triangles?
Triangle Shapes
problem

Triangle Shapes

Age
5 to 11
Challenge level
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This practical problem challenges you to create shapes and patterns with two different types of triangle. You could even try overlapping them.