Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-09-29

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 5.0)

The picture illustrates the information about the fuctions the a robotic arm perform.

Mainly, it demostrate the whole system that is required to operate thr arm.

Overall, there is a computer, motors that are used for mechanical arm, also there are few lables that represent some main components.

first of all, the image shows is a computer system that is use to control and mointor the motors. Then there are few similar type of motors for different components of arm. such as for elbow movement, to control builyt in sensors and for shoulder of arm.

In addition, diagram shows various features and other parts of arm. Features include a demonstration of spraying paints, use of arm as a drill and welding.

autonomus arm have some familiar feature to humans arm, such as wrist that allows arm to grip and hold, elbow for motion and shoulders to rise and lower the am.

AI examiner evaluation

Task Achievement / Task Response: Band 5.0

The student attempts to summarise the diagram illustrating the mechanical arm and its human-like joints, but the response falls short of fully satisfying the task requirements. While some main features are mentioned, such as the computer control, motors, joints (elbow, wrist, shoulder), and alternative end-effectors like spray painting and drilling, the description lacks clarity, accurate detail, and a well-developed overview. Key structural elements like the base and pivot are omitted, and the explanation of how the motors link to specific functions is vague. Furthermore, the response is barely above the minimum word count, leading to under-developed ideas. This aligns with Band 5 descriptors, as the task is addressed only partially with limited development.

Coherence and Cohesion: Band 5.0

The organisation of the text is hindered by poor paragraphing, weak cohesive devices, and mechanical transitions. The student uses basic cohesive phrases like 'Mainly,' 'Overall,' and 'first of all,' but these are often incorrectly punctuated and awkwardly placed. There is no clear logical progression between the introduction of the computer system, the motors, and the alternative end-effectors, resulting in a disjointed flow. Pronoun referencing is occasionally unclear ('to operate thr arm'). Paragraph breaks are poorly structured, with multiple short, disconnected blocks rather than cohesive thematic paragraphs. These issues reflect Band 5 Coherence and Cohesion descriptors, showing some organisation but lacking clear overall progression.

Lexical Resource: Band 5.0

The student demonstrates a limited and minimally adequate vocabulary range suitable for describing basic mechanical components. Words like 'computer,' 'motors,' 'elbow,' 'wrist,' and 'shoulder' are used correctly, but there are numerous spelling and word-choice errors throughout the text (e.g., 'fuctions' instead of functions, 'demostrate' instead of demonstrate, 'thr' instead of the, 'lables' instead of labels, 'builyt' instead of built, 'autonomus' instead of autonomous). These noticeable errors and misspellings frequently distract the reader and occasionally cause confusion. The student attempts some less common vocabulary such as 'autonomous arm,' but the execution is flawed. This corresponds to a Band 5 score for Lexical Resource.

Grammatical Range and Accuracy: Band 5.0

The response features a very limited range of grammatical structures, relying heavily on simple sentences with frequent structural errors. There are numerous basic grammatical and punctuation mistakes, including missing articles ('shows is a computer system'), subject-verb agreement issues ('the picture illustrates... the fuctions the a robotic arm perform'), and preposition misuse ('features include a demonstration of spraying paints'). Complex structures are rarely attempted, and when they are, they contain errors. Punctuation is erratic, with double spaces and misplaced commas. Because errors are frequent and occasionally cause difficulty for the reader, the writing fits the Band 5 descriptor for Grammatical Range and Accuracy.

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