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problem
Times
7 to 11
Which times on a digital clock have a line of symmetry? Which look
the same upside-down? You might like to try this investigation and
find out!
problem
Birthday Cake Candles
7 to 11
This challenge involves calculating the number of candles needed on birthday cakes. It is an opportunity to explore numbers and discover new things.
problem
Favourite
Last One Standing
14 to 16
Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?
problem
Favourite
Two's Company
11 to 14
Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?
problem
Favourite
Slick Summing
14 to 16
Watch the video to see how Charlie works out the sum. Can you adapt his method?
problem
Favourite
Can They Be Equal?
11 to 14
Can you find rectangles where the value of the area is the same as the value of the perimeter?
problem
Favourite
How Many?
5 to 11
Have a look at these photos of different fruit. How many do you see? How did you count?
problem
Favourite
What's in a Name?
5 to 7
What do you notice about these squares of numbers? What is the same? What is different?