median
don steward
mathematics teaching 10 ~ 16

Friday, 12 February 2016

nth term sums

the particular sums are intentionally presented out of sequence
students might decide/wish to re-order them
in order to generalise

a purpose for this task is to use algebraic simplification to show why you obtain the (particularly easy to spot) result

in a similar vein, students might create their own families of questions

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