Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?

How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?

It Figures

Age 7 to 11 Challenge Level:

We could really say that $2 \times 3
\times 4$ is just the same as $3 \times 2
\times 4$ the order does not really make any difference
in what we are doing.