Learner can elaborate on a single idea using cause, effect, or mechanism instead of listing multiple shallow points.
Explain why two developed ideas beat five shallow points.
In IELTS Task 2, a common mistake is listing ideas instead of developing them.
Writing "Firstly, it is cheap. Secondly, it is fast. Thirdly, it is easy." might feel like you are writing a lot, but it fails the Task Response criteria.
Pro tip: The examiner is grading the depth of your argument, not the quantity of your points.
Visual representation of a shallow list vs a deep explanation.

Depth is more valuable than quantity in IELTS essays.
Complete sentences that explain cause, effect, or mechanism.
Many students fail to achieve a high score in Task Response. , they do not fully address all parts of the prompt. Memorising rigid templates often leads to unnatural phrasing. , examiners may lower the Lexical Resource score. Planning your essay before writing saves valuable time. , organising your main ideas prevents you from getting stuck halfway through. Using complex grammar incorrectly makes the argument harder to read. , candidates should focus on clarity and accuracy first. A clear topic sentence introduces the main idea of a paragraph. , the reader immediately understands the argument being made.
Learner writes 2-3 explanation sentences; AI checks whether idea is developed.
Provide the claim: 'Public transport should be free.'
Write 1-2 sentences explaining exactly why this is true (mechanism), and 1-2 sentences explaining what the result would be (effect). Avoid listing other benefits like 'it is also good for the environment'.
Explain the step-by-step reason or cause behind the claim.
Explain the final outcome or impact of this mechanism.
Recall: 'A strong idea explains why it is true and why it matters.'