While I don't recommend memorising full IELTS essays, I'm sure that memorising can be a useful technique that might help you to get the score you need.
So, what can you memorise? Here are some ideas:
- The correct spelling of any words you have problems with.
- Some useful organisational phrases e.g. "It is clear that..." (to begin your summary paragraph for writing task 1).
- Some common topics for IELTS speaking part 2 e.g. a description of a hobby, person, place.
- Some good topic vocabulary (phrases rather than single words) for IELTS writing task 2.
Can you think of anything else that you could memorise before the exam?