bearings

trying to build in some generalisation to bearings questions

a ppt is here

isometric bearings

with isometric grids there is a restricted set of angles to consider
as long as students go along the 'isometric' (integer legths - the value of using an isometrc grid) pathways that is...

maybe start in different places
















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 (on the second sheet):

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: