Make a flower design using the same shape made out of different sizes of paper.
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 ...
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?
Can you fit the tangram pieces into the outline of the house?
Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?
Eight children each had a cube made from modelling clay. They cut them into four pieces which were all exactly the same shape and size. Whose pieces are the same? Can you decide who made each set?
Looking at the picture of this Jomista Mat, can you decribe what you see? Why not try and make one yourself?
Can you cover the camel with these pieces?
What happens when you try and fit the triomino pieces into these two grids?
Can you fit the tangram pieces into the outline of Mah Ling?
Can you fit the tangram pieces into the outlines of the people?
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?
What is the total area of the four outside triangles which are outlined in red in this arrangement of squares inside each other?
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?
A game has a special dice with a colour spot on each face. These three pictures show different views of the same dice. What colour is opposite blue?
What is the greatest number of squares you can make by overlapping three squares?
What shape has Harry drawn on this clock face? Can you find its area? What is the largest number of square tiles that could cover this area?
This article looks at levels of geometric thinking and the types of activities required to develop this thinking.
Exploring and predicting folding, cutting and punching holes and making spirals.
Have a go at this 3D extension to the Pebbles problem.
Paint a stripe on a cardboard roll. Can you predict what will happen when it is rolled across a sheet of paper?
How many different cuboids can you make when you use four CDs or DVDs? How about using five, then six?
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
Imagine a 3 by 3 by 3 cube. If you and a friend drill holes in some of the small cubes in the ways described, how many will have holes drilled through them?
This article for teachers discusses examples of problems in which there is no obvious method but in which children can be encouraged to think deeply about the context and extend their ability to. . . .
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?
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
Can you fit the tangram pieces into the outlines of the convex shapes?
Imagine a 3 by 3 by 3 cube made of 9 small cubes. Each face of the large cube is painted a different colour. How many small cubes will have two painted faces? Where are they?
Use the three triangles to fill these outline shapes. Perhaps you can create some of your own shapes for a friend to fill?
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?
This problem invites you to build 3D shapes using two different triangles. Can you make the shapes from the pictures?
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?
Reasoning about the number of matches needed to build squares that share their sides.
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.
Make a cube out of straws and have a go at this practical challenge.
What shape is made when you fold using this crease pattern? Can you make a ring design?
Can you visualise what shape this piece of paper will make when it is folded?
Have a go at making a few of these shapes from paper in different sizes. What patterns can you create?
Can you work out what shape is made when this piece of paper is folded up using the crease pattern shown?
Can you fit the tangram pieces into the outline of this teacup?
This challenge involves eight three-cube models made from interlocking cubes. Investigate different ways of putting the models together then compare your constructions.
Billy's class had a robot called Fred who could draw with chalk held underneath him. What shapes did the pupils make Fred draw?
Can you logically construct these silhouettes using the tangram pieces?
Can you fit the tangram pieces into the outlines of the camel and giraffe?
Can you fit the tangram pieces into the outline of the child walking home from school?
Can you fit the tangram pieces into the outline of the playing piece?
Can you fit the tangram pieces into the outlines of the numbers?
Why do you think that the red player chose that particular dot in this game of Seeing Squares?