We normally draw the phases of the moon with the terminator (the dividing line
between light and shadow) from the north pole to the south pole of the moon. This is
how the moon would be seen if it were on the observer’s meridian. We can use the
drawing above to determine the amount of illumination and whether it is on the left or
right hand side of the moon. Use the drawing above to draw the appearance of the moon
in the box below.