Movements on a grid

Horizontal movements are described using left and right.

Vertical movements are described using up and down directions.

In all cases a unit of measurement must be used. Centimeters, millimeters, kilometers,... etc.

Default wording is simply units.


eg. four units up and to units left.

Be sure you can describe the movements of shape or point.

Remember all three transformations: translation, reflection, and rotation.