History scores

This task is about describing and comparing graphs of history exam scores.
Each year students from different schools sat a standard history exam.
Each school graphed their average mark for ten years.

Question 1Change answer

a) Graph 1 shows the results from Airlie College. 
    Describe how the average mark for history at Airlie College changed over the ten years.

Question 1Change answer

b) Graphs 2 and 3 show the results for Milbrook College and Hatfield High School.
    Compare how the average marks of the two schools changed over the ten years.