The colours are for the average performance in each Year Level.
For example if a student passed
The average would be 6.
This allows you to see the performance of a cohort over time.
When a student is selected it shows their percentile performance (relative to their whole cohort – students in the same year at the same time) is overlaid as a line.
If you click on an area it will highlight where those students have goneFor example I clicked on the students that got a stanine 6 in their Year 9 PATs
Hovering over an area will list the names of the students