Shoe Sizes

possible related topics formulae, sequences, straight-line graphs

Learners could draw graphs to show the connections between the different countries’ shoe sizes. They might be able to express the connections algebraically. For example, let a = US/Canada, e = Europe, j = Japan, m = Mexico and u = UK.

Then,

e = a + 31

j = a + 16.5

m = a – 2

u = m

and so on.

Inequalities might be used to described the permissible ranges.

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