These two group activities use mathematical reasoning - one is numerical, one geometric.
EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.
Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?
Place the digits 1 to 9 into the circles so that each side of the triangle adds to the same total.
Can you find more than one solution?