problem
Favourite
How would we count?
Age
5 to 11
Challenge level
An activity centred around observations of dots and how we visualise number arrangement patterns.
problem
Favourite
That number square
Age
5 to 11
Challenge level
Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?
problem
Favourite
Doing and undoing
Age
5 to 11
Challenge level
An investigation looking at doing and undoing mathematical operations focusing on doubling, halving, adding and subtracting.
problem
Favourite
Two Spinners
Age
5 to 7
Challenge level
What two-digit numbers can you make with these two dice? What can't you make?
problem
Favourite
Always, Sometimes or Never?
Age
5 to 11
Challenge level
Are these statements relating to odd and even numbers always true, sometimes true or never true?
problem
Favourite
Birthday Sharing
Age
5 to 7
Challenge level
It's Sahila's birthday and she is having a party. How could you answer these questions using a picture, with things, with numbers or symbols?
problem
Favourite
Digit Addition
Age
5 to 11
Challenge level
Try out this number trick. What happens with different starting numbers? What do you notice?
problem
Favourite
How Many?
Age
5 to 11
Challenge level
Have a look at these photos of different fruit. How many do you see? How did you count?
problem
Favourite
Subtraction Slip
Age
5 to 7
Challenge level
Can you spot the mistake in this video? How would you work out the answer to this calculation?
game
Favourite
Snail One Hundred
In this game, you throw a dice and move counters along the snail's body and in a spiral around the snail's shell. It is about understanding tens and ones.
project
How Many?
This project challenges you to work out the number of cubes hidden under a cloth. What questions would you like to ask?
problem
Favourite
Catrina's Cards
Age
5 to 7
Challenge level
How would you find out how many football cards Catrina has collected?
problem
Favourite
Cover the Camel
Age
5 to 7
Challenge level
Can you cover the camel with these pieces?
problem
Favourite
Even and odd
Age
5 to 7
Challenge level
This activity is best done with a whole class or in a large group. Can you match the cards? What happens when you add pairs of the numbers together?
problem
Favourite
Two numbers under the microscope
Age
5 to 7
Challenge level
This investigates one particular property of number by looking closely at an example of adding two odd numbers together.
problem
Favourite
Make 37
Age
5 to 11
Challenge level
Four bags contain a large number of 1s, 3s, 5s and 7s. Can you pick any ten numbers from the bags so that their total is 37?
problem
Favourite
Eggs in Baskets
Age
5 to 7
Challenge level
There are three baskets, a brown one, a red one and a pink one, holding a total of 10 eggs. How many eggs are in each basket?
problem
Favourite
Odd times Even
Age
5 to 7
Challenge level
This problem looks at how one example of your choice can show something about the general structure of multiplication.
problem
Favourite
Cubes Cut into Four Pieces
Age
5 to 7
Challenge level
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?