Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?
Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?
Why do you think that the red player chose that particular dot in this game of Seeing Squares?
An activity centred around observations of dots and how we visualise number arrangement patterns.
These Stage 1 and 2 problems haven't been solved yet. Why not take a look?