Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · IELTS Momentum Workout · 2026-08-10

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 6.0)

The provided diagram illustrates the process of a mechanical arm. It shows how the joints that make up the arm function in the same way as of a human arm.

Looking from the overall perspective, a mechanical arm is built same as a human arm. The base of mechanical arm is connected to a motor and it does not move on regular basis. Connecting to the base, there is a shoulder which helps to rise and fall the level of arm.

Further, a pivot is attached with the shoulder which makes arm easy to rotate accordingly. The joint known as elbow, gives more flexibility and movement to the arm. This elbow is further connected to a motor which holds the wrist of the arm. This wrist plays the major role because it allows to make a grip to hold an object and also rotate the object at a same time.

Turning to the remaining part, the end of the arm is similar to a human hand, as it controls the force and make a tight grip of objects.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response covers the main features of the mechanical arm, identifying the base, shoulder, pivot, elbow, and wrist. It successfully draws comparisons to human anatomy as requested. However, the description is somewhat simplistic and lacks a more analytical overview of the mechanical process. While the main features are reported, the explanation of how these parts function together could be more detailed to reach a higher band. The summary is accurate, but it focuses more on listing parts than explaining the integrated system. To improve, ensure that the relationship between the components is described with more technical precision.

Coherence and Cohesion — Band 6.5

The essay is logically organized into paragraphs, each focusing on a specific section of the arm. There is a clear progression from the base to the hand. However, the use of cohesive devices is somewhat mechanical and repetitive (e.g., 'Further', 'Turning to the remaining part'). While the paragraphing is appropriate, the transition between ideas could be smoother. The referencing is generally clear, but the flow between sentences occasionally feels disjointed. Increasing the variety of linking words and phrases would help improve the overall cohesion of the response.

Lexical Resource — Band 6.0

The vocabulary is adequate for the task but lacks sophistication. Phrases like 'rise and fall the level of arm' and 'make a grip' are slightly unnatural and imprecise. While the student uses technical terms like 'pivot' and 'mechanical arm', the range is limited. There is a reliance on basic verbs and nouns. To achieve a higher score, the student should incorporate more precise collocations and descriptive vocabulary related to mechanical functions, such as 'articulate', 'actuate', or 'precision-engineered'.

Grammatical Range and Accuracy — Band 6.0

The response contains a mix of simple and complex sentence structures. There are several grammatical errors, such as 'built same as a human arm' (missing 'the'), 'at a same time' (incorrect article), and 'make a tight grip of objects' (awkward phrasing). While these errors do not impede communication, they are frequent enough to prevent a higher score. The student should focus on article usage, prepositional accuracy, and ensuring subject-verb agreement. The sentence variety is present, but the accuracy of complex structures needs improvement.

See this exact question answered at other band scores — the same prompt compared across bands.

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