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There are $44$ people coming to a dinner party. There are $15$ square tables that seat 4 people - one at each side - like this:
Or the tables can be joined together to make groups like this:
And so on...
Find a way to seat the $44$ people using all $15$ tables, with no empty places.
EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.
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?