The British Council have some great videos about the IELTS test. I decided to use one of them to introduce task 1 (academic) to a new
Band 5 and 8 in IELTS Writing Task 2 – Band Scores Explained
https://youtu.be/hS7J1fNOulg This post explains the difference between band 5 and band 8 task 2 answers by detailing the differences in the IELTS