Here are some challenges that you can work on and then see if you can convince someone that your solutions are right! Have a go!
problem
Favourite
Two numbers under the microscope
This investigates one particular property of number by looking closely at an example of adding two odd numbers together.
problem
Favourite
Even and odd
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
I Like ...
Mr Gilderdale is playing a game with his class. What rule might he have chosen? How would you test your idea?
problem
Favourite
Ring a Ring of Numbers
Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.
problem
Numbers as Shapes
Use cubes to continue making the numbers from 7 to 20. Are they sticks, rectangles or squares?
problem
A Bag of Marbles
Use the information to describe these marbles. What colours must be
on marbles that sparkle when rolling but are dark inside?
problem
Favourite
How Odd
This problem challenges you to find out how many odd numbers there are between pairs of numbers. Can you find a pair of numbers that has four odds between them?
problem
Favourite
In the Playground
What can you say about the child who will be first on the playground tomorrow morning at breaktime in your school?
problem
Favourite
Odd times Even
This problem looks at how one example of your choice can show something about the general structure of multiplication.
problem
Favourite
Lots of Lollies
Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?