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?
If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud?
Make a chair and table out of interlocking cubes, making sure that the chair fits under the table!
We have a box of cubes, triangular prisms, cones, cuboids,
cylinders and tetrahedrons. Which of the buildings would fall down
if we tried to make them?
You have a set of the digits from 0 – 9. Can you arrange these in the 5 boxes to make two-digit numbers as close to the targets as possible?
Can you create more models that follow these rules?
Our 2008 Advent Calendar has a 'Making Maths' activity for every
day in the run-up to Christmas.
This was a problem for our birthday website. Can you use four of these pieces to form a square? How about making a square with all five pieces?
Can you make the birds from the egg tangram?
NRICH December 2006 advent calendar - a new tangram for each day in
the run-up to Christmas.
Can you predict when you'll be clapping and when you'll be clicking
if you start this rhythm? How about when a friend begins a new
rhythm at the same time?
Using a loop of string stretched around three of your fingers, what
different triangles can you make? Draw them and sort them into
For this activity which explores capacity, you will need to collect some bottles and jars.
Here is a version of the game 'Happy Families' for you to make and
Arrange your fences to make the largest rectangular space you can. Try with four fences, then five, then six etc.
Can you deduce the pattern that has been used to lay out these
You'll need a collection of cups for this activity.
Can you fit the tangram pieces into the outline of Little Ming?
Can you make five differently sized squares from the tangram
Factors and Multiples game for an adult and child. How can you make sure you win this game?
In this activity focusing on capacity, you will need a collection of different jars and bottles.
Can you put these shapes in order of size? Start with the smallest.
Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
Make a cube out of straws and have a go at this practical
Exploring and predicting folding, cutting and punching holes and
Have you ever noticed the patterns in car wheel trims? These
questions will make you look at car wheels in a different way!
Ideas for practical ways of representing data such as Venn and
This problem invites you to build 3D shapes using two different
triangles. Can you make the shapes from the pictures?
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
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?
Use the three triangles to fill these outline shapes. Perhaps you can create some of your own shapes for a friend to fill?
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?
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?
Can you fit the tangram pieces into the outline of this junk?
Can you recreate this Indian screen pattern? Can you make up
similar patterns of your own?
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?
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
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?
Can you make the most extraordinary, the most amazing, the most
unusual patterns/designs from these triangles which are made in a
Here's a simple way to make a Tangram without any measuring or
What shape is made when you fold using this crease pattern? Can you make a ring design?
Follow the diagrams to make this patchwork piece, based on an
octagon in a square.
Looking at the picture of this Jomista Mat, can you decribe what
you see? Why not try and make one yourself?
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.
Investigate the smallest number of moves it takes to turn these
mats upside-down if you can only turn exactly three at a time.