This package contains hands-on code breaking activities based on
the Enigma Schools Project. Suitable for Stages 2, 3 and 4.
Design and construct a prototype intercooler which will satisfy agreed quality control constraints.
Make some celtic knot patterns using tiling techniques
These models have appeared around the Centre for Mathematical Sciences. Perhaps you would like to try to make some similar models of your own.
Did you know mazes tell stories? Find out more about mazes and make
one of your own.
Exploring balance and centres of mass can be great fun. The
resulting structures can seem impossible. Here are some images to
encourage you to experiment with non-breakable objects of your own.
As part of Liverpool08 European Capital of Culture there were a
huge number of events and displays. One of the art installations
was called "Turning the Place Over". Can you find our how it works?
Make a spiral mobile.
You could use just coloured pencils and paper to create this
design, but it will be more eye-catching if you can get hold of
hammer, nails and string.
The challenge for you is to make a string of six (or more!) graded
In this challenge, you will work in a group to investigate circular
fences enclosing trees that are planted in square or triangular
It might seem impossible but it is possible. How can you cut a
playing card to make a hole big enough to walk through?
This article for students gives some instructions about how to make some different braids.
Build a scaffold out of drinking-straws to support a cup of water
Can Jo make a gym bag for her trainers from the piece of fabric she has?
This article for pupils gives an introduction to Celtic knotwork
patterns and a feel for how you can draw them.
Make a ball from triangles!
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
Can you make the birds from the egg tangram?
Make a cube out of straws and have a go at this practical
Logo helps us to understand gradients of lines and why Muggles Magic is not magic but mathematics. See the problem Muggles magic.
Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?
An activity making various patterns with 2 x 1 rectangular tiles.
Are all the possible combinations of two shapes included in this
set of 27 cards? How do you know?
Here's a simple way to make a Tangram without any measuring or
Investigate the smallest number of moves it takes to turn these
mats upside-down if you can only turn exactly three at a time.
Ideas for practical ways of representing data such as Venn and
NRICH December 2006 advent calendar - a new tangram for each day in
the run-up to Christmas.
Let's say you can only use two different lengths - 2 units and 4
units. Using just these 2 lengths as the edges how many different
cuboids can you make?
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.
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
I start with a red, a green and a blue marble. I can trade any of my marbles for two others, one of each colour. Can I end up with five more blue marbles than red after a number of such trades?
Can you recreate this Indian screen pattern? Can you make up
similar patterns of your own?
Can you fit the tangram pieces into the outline of Wai Ping, Wah Ming and Chi Wing?
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?
Take a counter and surround it by a ring of other counters that
MUST touch two others. How many are needed?
Can you fit the tangram pieces into the outline of this junk?
This practical problem challenges you to create shapes and patterns
with two different types of triangle. You could even try
Looking at the picture of this Jomista Mat, can you decribe what
you see? Why not try and make one yourself?
Can you make the most extraordinary, the most amazing, the most
unusual patterns/designs from these triangles which are made in a
Exploring and predicting folding, cutting and punching holes and
These are pictures of the sea defences at New Brighton. Can you
work out what a basic shape might be in both images of the sea wall
and work out a way they might fit together?
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?
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?
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.
A description of how to make the five Platonic solids out of paper.
Follow the diagrams to make this patchwork piece, based on an
octagon in a square.
Starting with four different triangles, imagine you have an
unlimited number of each type. How many different tetrahedra can
you make? Convince us you have found them all.
In how many ways can you fit two of these yellow triangles
together? Can you predict the number of ways two blue triangles can
be fitted together?
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