don steward
mathematics teaching 10 ~ 16

Saturday, 9 February 2013

isometric bearings

with isometric grids there is a restricted set of angles to consider
as long as students go along the 'isometric' pathways that is...

students could draw their own shape on isometric paper and read out a journey round the shape using bearings for their neighbour to try to draw

it is probably normal to have the North direction pointing 'upwards'

students can be asked to draw the shapes, starting at the points shown and with the North direction shown:

restricting shapes to e.g. a rhombus
or an isometric trapezium
can lead to relationships between the side lengths and between the bearings totals being sought:

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