Use the tangram pieces to make our pictures, or to design some of your own!
A game to make and play based on the number line.
Paint a stripe on a cardboard roll. Can you predict what will happen when it is rolled across a sheet of paper?
Have a look at what happens when you pull a reef knot and a granny knot tight. Which do you think is best for securing things together? Why?
What is the greatest number of squares you can make by overlapping three squares?
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?
Here is a version of the game 'Happy Families' for you to make and play.
Follow these instructions to make a three-piece and/or seven-piece tangram.
Make your own double-sided magic square. But can you complete both sides once you've made the pieces?
Looking at the picture of this Jomista Mat, can you decribe what you see? Why not try and make one yourself?
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?
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?
Move four sticks so there are exactly four triangles.
Can you cut up a square in the way shown and make the pieces into a triangle?
Can you cut a regular hexagon into two pieces to make a parallelogram? Try cutting it into three pieces to make a rhombus!
Make a cube out of straws and have a go at this practical challenge.
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?
How many different cuboids can you make when you use four CDs or DVDs? How about using five, then six?
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?
If you split the square into these two pieces, it is possible to fit the pieces together again to make a new shape. How many new shapes can you make?
Reasoning about the number of matches needed to build squares that share their sides.
Can you describe a piece of paper clearly enough for your partner to know which piece it is?
Exploring and predicting folding, cutting and punching holes and making spirals.
Can you visualise what shape this piece of paper will make when it is folded?
Take a rectangle of paper and fold it in half, and half again, to make four smaller rectangles. How many different ways can you fold it up?
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.
This problem invites you to build 3D shapes using two different triangles. Can you make the shapes from the pictures?
Can you split each of the shapes below in half so that the two parts are exactly the same?
What are the next three numbers in this sequence? Can you explain why are they called pyramid numbers?
For this task, you'll need an A4 sheet and two A5 transparent sheets. Decide on a way of arranging the A5 sheets on top of the A4 sheet and explore ...
Have a go at making a few of these shapes from paper in different sizes. What patterns can you create?
Have you ever tried tessellating capital letters? Have a look at these examples and then try some for yourself.
Can you work out what shape is made when this piece of paper is folded up using the crease pattern shown?
Make a flower design using the same shape made out of different sizes of paper.
Can you work out what shape is made by folding in this way? Why not create some patterns using this shape but in different sizes?
What shape is made when you fold using this crease pattern? Can you make a ring design?
Have a go at drawing these stars which use six points drawn around a circle. Perhaps you can create your own designs?
This is a simple paper-folding activity that gives an intriguing result which you can then investigate further.
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?
Arrange your fences to make the largest rectangular space you can. Try with four fences, then five, then six etc.
Factors and Multiples game for an adult and child. How can you make sure you win this game?
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. . . .
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?
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?
How can you make a curve from straight strips of paper?
Follow the diagrams to make this patchwork piece, based on an octagon in a square.
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?
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?