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Prompt Cards
These two group activities use mathematical reasoning - one is numerical, one geometric.
Exploring Wild & Wonderful Number Patterns
EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.
Worms
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?
Age 7 to 11 Challenge Level:
Martha from Tattingstone School sent us a very clearly answer to the first part:
Martha goes on to give the solution for
the second part too: 
Caroline, also from Tattingstone, has
answered the third part of the problem: 
Well done Caroline - although perhaps it
would have been better to write 3 x 4, not 4 x 3. Back to Martha
for part four: 
Finally, Caroline has answered the last
part for us: 
Excellent answers both of you! Very well done.
NRICH is part of the family of activities in the Millennium Mathematics Project.