don steward
mathematics teaching 10 ~ 16

Saturday, 27 July 2019

density with grids

John Mason commented that the topic of compound measures might be better started with 'density' than speed - because it can be more visual

a powerpoint is here

part : whole ratios, maybe conveniently expressed as a fraction
some involving cancelling
some involving the lcm (or both)

see also population density of grids
and ratio in car parks

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