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You have two egg timers.
One takes 4 minutes exactly to empty and the other takes 7 minutes.
What times in whole minutes can you measure and how? (You can ignore the time it takes to reset the timers.)
These two group activities use mathematical reasoning - one is numerical, one geometric.
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.