don steward
mathematics teaching 10 ~ 16

Monday, 13 June 2016

stairs steepness

the powerpoint is here

this task is based on an idea from Malcolm Swan and Jim Ridgway

Fawn Nguyen writes about using these resources here

some scale drawings of staircases are shown

students write down the letter of the staircases
in order of their steepness (most down to least)

without using any form of measuring device, initially anyway
they then consider how they might measure the steepness to check whether their order is reasonable or not

what could they do if protractors are not available?

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