median
don steward
mathematics teaching 10 ~ 16

Sunday, 10 April 2016

generalising GCSE questions (16)

a past problem from Eduqas asks students to find a set of five numbers fitting given rules about the averages and range

it is interesting that there are two such solutions

















what happens for other values for the averages and range?

 prove an impossibility
explore (by substitution) some general rules that work for a limited set of values

set up inequalities for 'k' and 'n' for which these general rules work

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