On Saturday I suggested that you analyse the task 1 answer that I shared in this lesson. Here's my quick analysis:
The answer fulfils the requirements of the task by giving a clear overview of the main trends shown in the table, and by presenting key details. Good comparisons are made between the two schools and the two years.
Coherence and cohesion
Paragraphing is clear, information is presented in a logical order, and cohesion (e.g. linking and comparing) does its job without attracting too much attention.
A wide range of vocabulary is used in a natural and sophisticated way, with no mistakes. Some less common items of vocabulary are used.
Grammatical range and accuracy
Most importantly, there are no mistakes in the answer. A range of sentence structures is used with full flexibility and accuracy.
Can you find some examples of good cohesion (linking / comparing) and less common vocabulary in my answer?