Resources tagged with: Rotations

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There are 60 NRICH Mathematical resources connected to Rotations, you may find related items under Transformations and constructions.

Broad Topics > Transformations and constructions > Rotations

Robotic Rotations

Age 11 to 16
Challenge Level

How did the the rotation robot make these patterns?

National Flags

Age 7 to 11
Challenge Level

This problem explores the shapes and symmetries in some national flags.

Poly Plug Pattern

Age 5 to 7
Challenge Level

Create a pattern on the small grid. How could you extend your pattern on the larger grid?

Attractive Rotations

Age 11 to 14
Challenge Level

Here is a chance to create some attractive images by rotating shapes through multiples of 90 degrees, or 30 degrees, or 72 degrees or...

Turning Man

Age 5 to 7
Challenge Level

Use the interactivity to find out how many quarter turns the man must rotate through to look like each of the pictures.

...on the Wall

Age 11 to 14
Challenge Level

Explore the effect of reflecting in two intersecting mirror lines.

Transformation Game

Age 11 to 14
Challenge Level

Why not challenge a friend to play this transformation game?

Coordinate Challenge

Age 7 to 11
Challenge Level

Use the clues about the symmetrical properties of these letters to place them on the grid.

Rollin' Rollin' Rollin'

Age 11 to 14
Challenge Level

Two circles of equal radius touch at P. One circle is fixed whilst the other moves, rolling without slipping, all the way round. How many times does the moving coin revolve before returning to P?

John's Train Is on Time

Age 11 to 14
Challenge Level

A train leaves on time. After it has gone 8 miles (at 33mph) the driver looks at his watch and sees that the hour hand is exactly over the minute hand. When did the train leave the station?

Shady Symmetry

Age 11 to 14
Challenge Level

How many different symmetrical shapes can you make by shading triangles or squares?

Attractive Tablecloths

Age 14 to 16
Challenge Level

Charlie likes tablecloths that use as many colours as possible, but insists that his tablecloths have some symmetry. Can you work out how many colours he needs for different tablecloth designs?

Paint Rollers for Frieze Patterns.

Age 11 to 16

Proofs that there are only seven frieze patterns involve complicated group theory. The symmetries of a cylinder provide an easier approach.

Rose

Age 16 to 18
Challenge Level

What groups of transformations map a regular pentagon to itself?

2010: A Year of Investigations

Age 5 to 14

This article for teachers suggests ideas for activities built around 10 and 2010.

Stereoisomers

Age 16 to 18
Challenge Level

Put your visualisation skills to the test by seeing which of these molecules can be rotated onto each other.

Hexpentas

Age 5 to 11
Challenge Level

How many different ways can you find of fitting five hexagons together? How will you know you have found all the ways?

Tiles in a Public Building

Age 7 to 11
Challenge Level

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

Age 5 to 7
Challenge Level

Watch this "Notes on a Triangle" film. Can you recreate parts of the film using cut-out triangles?

Notes on a Triangle

Age 11 to 14
Challenge Level

Can you describe what happens in this film?

Flip

Age 7 to 11
Challenge Level

Can you picture where this letter "F" will be on the grid if you flip it in these different ways?

Interpenetrating Solids

Age 16 to 18
Challenge Level

This problem provides training in visualisation and representation of 3D shapes. You will need to imagine rotating cubes, squashing cubes and even superimposing cubes!

Arrow Arithmetic 1

Age 14 to 16
Challenge Level

The first part of an investigation into how to represent numbers using geometric transformations that ultimately leads us to discover numbers not on the number line.

Shape Mapping

Age 7 to 11
Challenge Level

What is the relationship between these first two shapes? Which shape relates to the third one in the same way? Can you explain why?

Rearrange the Square

Age 5 to 7
Challenge Level

We can cut a small triangle off the corner of a square and then fit the two pieces together. Can you work out how these shapes are made from the two pieces?

Peg Rotation

Age 7 to 11
Challenge Level

Can you work out what kind of rotation produced this pattern of pegs in our pegboard?

Making Maths: Indian Window Screen

Age 7 to 11
Challenge Level

Can you recreate this Indian screen pattern? Can you make up similar patterns of your own?

Simplifying Transformations

Age 11 to 14
Challenge Level

How many different transformations can you find made up from combinations of R, S and their inverses? Can you be sure that you have found them all?

Combining Transformations

Age 11 to 14
Challenge Level

Does changing the order of transformations always/sometimes/never produce the same transformation?

Decoding Transformations

Age 11 to 14
Challenge Level

See the effects of some combined transformations on a shape. Can you describe what the individual transformations do?

Rotations Are Not Single Round Here

Age 14 to 16
Challenge Level

I noticed this about streamers that have rotation symmetry : if there was one centre of rotation there always seems to be a second centre that also worked. Can you find a design that has only. . . .

A Roll of Patterned Paper

Age 14 to 16
Challenge Level

A design is repeated endlessly along a line - rather like a stream of paper coming off a roll. Make a strip that matches itself after rotation, or after reflection

Footprints

Age 16 to 18
Challenge Level

Make a footprint pattern using only reflections.

Symmetric Trace

Age 14 to 16
Challenge Level

Points off a rolling wheel make traces. What makes those traces have symmetry?

Watch Those Wheels

Age 5 to 7
Challenge Level

Have you ever noticed the patterns in car wheel trims? These questions will make you look at car wheels in a different way!

Lafayette

Age 7 to 11
Challenge Level

What mathematical words can be used to describe this floor covering? How many different shapes can you see inside this photograph?

Coordinating Classroom Coordinates

Age 7 to 11

This article describes a practical approach to enhance the teaching and learning of coordinates.

Shaping up with Tessellations

Age 7 to 14

This article describes the scope for practical exploration of tessellations both in and out of the classroom. It seems a golden opportunity to link art with maths, allowing the creative side of your. . . .

The Matrix

Age 16 to 18
Challenge Level

Investigate the transfomations of the plane given by the 2 by 2 matrices with entries taking all combinations of values 0. -1 and +1.

Napoleon's Theorem

Age 14 to 18
Challenge Level

Triangle ABC has equilateral triangles drawn on its edges. Points P, Q and R are the centres of the equilateral triangles. What can you prove about the triangle PQR?

Transforming the Letters

Age 7 to 11
Challenge Level

What happens to these capital letters when they are rotated through one half turn, or flipped sideways and from top to bottom?

Rots and Refs

Age 16 to 18
Challenge Level

Follow hints using a little coordinate geometry, plane geometry and trig to see how matrices are used to work on transformations of the plane.

The Frieze Tree

Age 11 to 16

Patterns that repeat in a line are strangely interesting. How many types are there and how do you tell one type from another?

Frieze Patterns in Cast Iron

Age 11 to 16

A gallery of beautiful photos of cast ironwork friezes in Australia with a mathematical discussion of the classification of frieze patterns.

Penta Play

Age 7 to 11
Challenge Level

A shape and space game for 2, 3 or 4 players. Be the last person to be able to place a pentomino piece on the playing board.

Transformation Tease

Age 7 to 11
Challenge Level

What are the coordinates of this shape after it has been transformed in the ways described? Compare these with the original coordinates. What do you notice about the numbers?

Same Shapes

Age 5 to 7
Challenge Level

How can these shapes be cut in half to make two shapes the same shape and size? Can you find more than one way to do it?

In a Spin

Age 14 to 16
Challenge Level

What is the volume of the solid formed by rotating this right angled triangle about the hypotenuse?

Overlap

Age 14 to 16
Challenge Level

A red square and a blue square overlap. Is the area of the overlap always the same?

Middle Man

Age 16 to 18
Challenge Level

Mark a point P inside a closed curve. Is it always possible to find two points that lie on the curve, such that P is the mid point of the line joining these two points?