Can you recreate this Indian screen pattern? Can you make up
similar patterns of your own?
It's hard to make a snowflake with six perfect lines of symmetry,
but it's fun to try!
A brief video looking at how you can sometimes use symmetry to
distinguish knots. Can you use this idea to investigate the
differences between the granny knot and the reef knot?
Follow these instructions to make a five-pointed snowflake from a
square of paper.
Using these kite and dart templates, you could try to recreate part
of Penrose's famous tessellation or design one yourself.
Can you describe what happens in this film?
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
Can you deduce the pattern that has been used to lay out these
How many differently shaped rectangles can you build using these
equilateral and isosceles triangles? Can you make a square?
This practical investigation invites you to make tessellating
shapes in a similar way to the artist Escher.
Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?
This practical problem challenges you to create shapes and patterns
with two different types of triangle. You could even try
Follow the diagrams to make this patchwork piece, based on an
octagon in a square.
If you'd like to know more about Primary Maths Masterclasses, this
is the package to read! Find out about current groups in your
region or how to set up your own.
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
Looking at the picture of this Jomista Mat, can you decribe what
you see? Why not try and make one yourself?
Using different numbers of sticks, how many different triangles are
you able to make? Can you make any rules about the numbers of
sticks that make the most triangles?
Can you make the birds from the egg tangram?
Here's a simple way to make a Tangram without any measuring or
NRICH December 2006 advent calendar - a new tangram for each day in
the run-up to Christmas.
Can you make the most extraordinary, the most amazing, the most
unusual patterns/designs from these triangles which are made in a
Kaia is sure that her father has worn a particular tie twice a week
in at least five of the last ten weeks, but her father disagrees.
Who do you think is right?
The triangle ABC is equilateral. The arc AB has centre C, the arc
BC has centre A and the arc CA has centre B. Explain how and why
this shape can roll along between two parallel tracks.
Can you fit the tangram pieces into the outline of this junk?
Can you fit the tangram pieces into the outline of the child walking home from school?
Can you fit the tangram pieces into the outlines of these clocks?
Can you fit the tangram pieces into the outlines of these people?
Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?
Can you fit the tangram pieces into the outlines of the chairs?
Can you fit the tangram pieces into the outlines of Mai Ling and Chi Wing?
Can you fit the tangram pieces into the outline of this shape. How would you describe it?
Can you fit the tangram pieces into the outline of this brazier for roasting chestnuts?
Can you fit the tangram pieces into the outline of Little Fung at the table?
What happens to the area of a square if you double the length of
the sides? Try the same thing with rectangles, diamonds and other
shapes. How do the four smaller ones fit into the larger one?
An activity making various patterns with 2 x 1 rectangular tiles.
Take 5 cubes of one colour and 2 of another colour. How many
different ways can you join them if the 5 must touch the table and
the 2 must not touch the table?
Have a go at drawing these stars which use six points drawn around
a circle. Perhaps you can create your own designs?
Can you fit the tangram pieces into the outline of Little Ming playing the board game?
Can you fit the tangram pieces into the outline of this telephone?
Take a counter and surround it by a ring of other counters that
MUST touch two others. How many are needed?
Make a cube out of straws and have a go at this practical
What is the largest number of circles we can fit into the frame
without them overlapping? How do you know? What will happen if you
try the other shapes?
Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?
Can you create more models that follow these rules?
This is a simple paper-folding activity that gives an intriguing result which you can then investigate further.
Make new patterns from simple turning instructions. You can have a
go using pencil and paper or with a floor robot.
In this challenge, you will work in a group to investigate circular
fences enclosing trees that are planted in square or triangular
How can you make a curve from straight strips of paper?
If these balls are put on a line with each ball touching the one in
front and the one behind, which arrangement makes the shortest line
You have been given three shapes made out of sponge: a sphere, a cylinder and a cone. Your challenge is to find out how to cut them to make different shapes for printing.