Before beginning this unit we
assume that students have already worked with some functions, in
particular functions which deal with proportion. Through the activities in this unit we
expect the students to build on their existing knowledge to find out more
about functions and learn how to interpret graphs of functions.
The activities focus on plotting points
from coordinates and reading straight line graphs, i.e. being able to
identify different types of graphs depending on their gradient and position on
the axes.
