Surprise!

Surprise!

Curiosity is triggered when something unexpected happens. These problems aim to draw students in by offering that element of surprise.

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The last date for submitting solutions is Friday 18 May.


Next-door Numbers live

Stage: 1 Challenge Level: Challenge Level:1
Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?

Light the Lights live

Stage: 1 Challenge Level: Challenge Level:2 Challenge Level:2
Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?

Square Surprise live

Stage: 1 and 2 Challenge Level: Challenge Level:1
Why do you think that the red player chose that particular dot in this game of Seeing Squares?

How Would We Count? live

Stage: 1 and 2 Challenge Level: Challenge Level:1
An activity centred around observations of dots and how we visualise number arrangement patterns.

Pouring Problem live

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2
What do you think is going to happen in this video clip? Are you surprised?

Consecutive Numbers live

Stage: 2 and 3 Challenge Level: Challenge Level:1
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Subtraction Surprise live

Stage: 2 and 3 Challenge Level: Challenge Level:1
Try out some calculations. Are you surprised by the results?