Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?
One Wasn't Square
Age 7 to 11 Challenge Level:
What can you deduce from what Jamie says?
Making a list of square numbers might help.
You could try finding pairs of numbers that make squares.
All the numbers, including the squares, are less than $40$.
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice.