Can you visualise what shape this piece of paper will make when it is folded?
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
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?
What does the overlap of these two shapes look like? Try picturing it in your head and then use some cut-out shapes to test your prediction.
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?
What is the total area of the four outside triangles which are outlined in red in this arrangement of squares inside each other?
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.
How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
Have a go at making a few of these shapes from paper in different sizes. What patterns can you create?
How many different triangles can you make on a circular pegboard that has nine pegs?
Looking at the picture of this Jomista Mat, can you decribe what you see? Why not try and make one yourself?
Can you describe a piece of paper clearly enough for your partner to know which piece it is?
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?
What is the greatest number of squares you can make by overlapping three squares?
Choose a box and work out the smallest rectangle of paper needed to wrap it so that it is completely covered.
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.
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?
Exploring and predicting folding, cutting and punching holes and making spirals.
A group activity using visualisation of squares and triangles.
Billy's class had a robot called Fred who could draw with chalk held underneath him. What shapes did the pupils make Fred draw?
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
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?
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 ...
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?
Can you work out what shape is made when this piece of paper is folded up using the crease pattern shown?
What shape is made when you fold using this crease pattern? Can you make a ring design?
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?
Make a flower design using the same shape made out of different sizes of paper.
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?
Can you split each of the shapes below in half so that the two parts are exactly the same?
In this town, houses are built with one room for each person. There are some families of seven people living in the town. In how many different ways can they build their houses?
What are the next three numbers in this sequence? Can you explain why are they called pyramid numbers?
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?
Have you ever tried tessellating capital letters? Have a look at these examples and then try some for yourself.
Draw three straight lines to separate these shapes into four groups - each group must contain one of each shape.
Move just three of the circles so that the triangle faces in the opposite direction.
Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?
How many balls of modelling clay and how many straws does it take to make these skeleton shapes?
Find your way through the grid starting at 2 and following these operations. What number do you end on?
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?
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
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?
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?
Here you see the front and back views of a dodecahedron. Each vertex has been numbered so that the numbers around each pentagonal face add up to 65. Can you find all the missing numbers?