Hard · Strategy guide

Diagram Label Completion

Diagram Label Completion requires labelling parts of a diagram, flow chart, or process with words from the passage. The diagram represents a structure or process described in the text.

Step-by-Step Approach

  1. 1

    Study the diagram carefully — understand what it shows.

  2. 2

    Read the passage section describing the diagram's subject.

  3. 3

    For each label: identify what part of the structure/process it refers to.

  4. 4

    Find the exact words in the passage that describe that part.

Common Traps to Avoid

Using General Terms Instead of Passage Terms

Use the passage's specific technical vocabulary — not your own words.

If the passage says "permeable membrane", do not write "filter layer".

Band 8–9 Strategies

  • Diagrams are usually described in a specific passage section — identify it first.

  • Labels follow a logical order (top to bottom, inside to outside) that matches the passage description.

  • Technical terms are often exact — look for specialist vocabulary in the passage.

Time Strategy

8 minutes. Identify the passage section first (2 min), then label systematically.

Frequently Asked Questions

What is the best way to approach IELTS Diagram Label Completion?

Diagram Label Completion requires labelling parts of a diagram, flow chart, or process with words from the passage. The diagram represents a structure or process described in the text.

What is the most common trap in IELTS Diagram Label Completion?

Using General Terms Instead of Passage Terms: Use the passage's specific technical vocabulary — not your own words. For example, If the passage says "permeable membrane", do not write "filter layer".

How much time should I spend on IELTS Diagram Label Completion questions?

8 minutes. Identify the passage section first (2 min), then label systematically.

Keep building your Reading band