What shape and size of drinks mat is best for flipping and catching?
In this challenge, you will work in a group to investigate circular
fences enclosing trees that are planted in square or triangular
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.
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.
These models have appeared around the Centre for Mathematical Sciences. Perhaps you would like to try to make some similar models of your own.
This project challenges you to work out the number of cubes hidden
under a cloth. What questions would you like to ask?
This package contains hands-on code breaking activities based on
the Enigma Schools Project. Suitable for Stages 2, 3 and 4.
Can you lay out the pictures of the drinks in the way described by
the clue cards?
In this article for teachers, Bernard uses some problems to suggest
that once a numerical pattern has been spotted from a practical
starting point, going back to the practical can help explain. . . .
How does the time of dawn and dusk vary? What about the Moon, how does that change from night to night? Is the Sun always the same? Gather data to help you explore these questions.
Make some celtic knot patterns using tiling techniques
Make a spiral mobile.
This article for pupils gives an introduction to Celtic knotwork
patterns and a feel for how you can draw them.
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.
How can you put five cereal packets together to make different
shapes if you must put them face-to-face?
Learn how to draw circles using Logo. Wait a minute! Are they really circles? If not what are they?
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
Learn about Pen Up and Pen Down in Logo
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?
Make a cube out of straws and have a go at this practical
Have you ever noticed the patterns in car wheel trims? These
questions will make you look at car wheels in a different way!
Exploring and predicting folding, cutting and punching holes and
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?
What do these two triangles have in common? How are they related?
Use the three triangles to fill these outline shapes. Perhaps you can create some of your own shapes for a friend to fill?
More Logo for beginners. Now learn more about the REPEAT command.
Ideas for practical ways of representing data such as Venn and
Follow the diagrams to make this patchwork piece, based on an
octagon in a square.
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?
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?
Can you see which tile is the odd one out in this design? Using the
basic tile, can you make a repeating pattern to decorate our wall?
A description of how to make the five Platonic solids out of paper.
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.
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?
Watch this "Notes on a Triangle" film. Can you recreate parts of
the film using cut-out triangles?
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?
Kimie and Sebastian were making sticks from interlocking cubes and lining them up. Can they make their lines the same length? Can they make any other lines?
Can you make the most extraordinary, the most amazing, the most
unusual patterns/designs from these triangles which are made in a
Are all the possible combinations of two shapes included in this
set of 27 cards? How do you know?
An activity making various patterns with 2 x 1 rectangular tiles.
This problem invites you to build 3D shapes using two different
triangles. Can you make the shapes from the pictures?
Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?
Investigate the smallest number of moves it takes to turn these
mats upside-down if you can only turn exactly three at a time.
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.
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?
Can you make the birds from the egg tangram?