Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · IELTS Momentum Workout · 2026-07-24

IELTS Writing Task 1 question

The diagram below shows how a mechanical arm works, and how the joints that make up the arm function in the same way as those in a human arm. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Student answer (Band 5.5)

This diagram illustrate how a mechanical arm works and how its joints are able to act as the same as human organ . Firstly the diagram demonstrate that the mechanical arm is computerized. The arm has a motor . The base of th arm is can be moved . Pivot is the part that allows the arm to move . The elbow gives flexibility.Built in sensor are a used in gripper to grab things . The wrist is the one one that is allowing the gripper to rotate

AI examiner evaluation

Task Achievement / Task Response — Band 5.5

The response fails to meet the minimum word count requirement of 150 words, reaching only 88 words. Consequently, the task is only partially addressed. While the student identifies some components of the mechanical arm, such as the motor, pivot, and sensors, the description is superficial and lacks the necessary detail to fully explain the mechanical process or provide a meaningful comparison with a human arm as requested. The summary is underdeveloped, and the lack of length prevents a comprehensive overview of the main features shown in the diagram.

Coherence and Cohesion — Band 5.5

The response lacks a clear structure or paragraphing. While there is a basic attempt to sequence information using 'Firstly', the overall progression is disjointed. The sentences are simple and lack effective cohesive devices to link the ideas together logically. The text reads more like a list of observations rather than a cohesive summary of a technical diagram. To improve, the student should group related features into paragraphs and use linking words to create a smoother flow between the description of the mechanical parts and their functions.

Lexical Resource — Band 5.5

The vocabulary is quite limited and repetitive. The student relies on basic terms such as 'move', 'part', and 'arm'. There is little attempt to use precise technical vocabulary appropriate for describing a mechanical system. Some word choices are inaccurate, such as referring to a human arm as a 'human organ' in this context. Spelling errors, such as 'th' instead of 'the' and 'sensor are a used', further detract from the quality of the writing. A wider range of descriptive and technical vocabulary is needed to reach a higher band.

Grammatical Range and Accuracy — Band 5.5

The response consists almost entirely of simple sentences with frequent grammatical errors. There are issues with subject-verb agreement, such as 'diagram illustrate' (should be 'illustrates') and 'sensor are a used'. The use of articles is inconsistent, and the sentence structure is repetitive. There is no evidence of complex sentence structures, which are necessary for higher band scores. The errors in basic grammar and punctuation occasionally make the text difficult to follow, though the general meaning remains understandable.

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