Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-09-22
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)
This diagram given below illustrates working of mechanical arms,and the joints that makeup by the arm function exactly same the way human arms works.
Overall,it is shown a working of computer-precision control of motors which is divided in to three motors and working of pivot-enables and its rotation.
At first,motor is connected to the pivot-enable arm which is moveable in contrast, A second motor joined with elbow and third connected to gripper-built in sensors control force.
secondly, A wrist-allows gripper help to rotate.Shoulders working under thre gripper which helps in rotation.it rasied lower arm for rotation. There is a base present beneath these tools it generaly move according to an occasion it is still moveable but depend according to situation otherwise it stays stationary. there is aso an alternative end-effectors is shown which is used to spray paints and weld metal.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.0 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.0 |
Task Achievement / Task Response — Band 5.0
The student attempts to summarise the diagram illustrating the mechanical arm and its human-like joints, covering key components such as motors, the pivot, the wrist, shoulders, base, and alternative end-effectors. However, the response falls short of the 150-word minimum requirement, containing only 141 words, which incurs a penalty under Task Achievement. Furthermore, several descriptions of how the parts function are slightly confused or imprecise, such as stating that shoulders 'rasied lower arm for rotation' and misinterpreting the computer control aspect. Overall, the task is addressed only partially, warranting a band score of 5.0.
Coherence and Cohesion — Band 5.0
The text is divided into an introduction and two body paragraphs, showing an attempt at organisation. However, the logical progression is frequently disrupted by awkward transitions, run-on sentences, and punctuation errors, such as 'Overall,it is shown' and starting a new paragraph abruptly with 'secondly, A wrist-allows gripper help to rotate.' Cohesive devices are used mechanically or inaccurately (e.g., 'in contrast' used inappropriately in the middle of a sentence). Paragraphing is attempted, but internal cohesion is weak. These issues correspond to a band 5.0 for coherence and cohesion.
Lexical Resource — Band 5.0
The vocabulary used is basic and heavily reliant on copying terms directly from the diagram prompt (e.g., 'computer-precision control of motors', 'pivot-enables', 'gripper-built in sensors control force'). There are noticeable word choice and collocation errors, such as 'makeup by the arm function exactly same' and 'it generaly move according to an occasion it is still moveable'. Spelling and word formation errors also appear, such as 'rasied' instead of 'raised' and 'aso' instead of 'also'. This range is limited and minimally adequate, fitting the band 5.0 descriptors.
Grammatical Range and Accuracy — Band 5.0
The student demonstrates a very limited range of grammatical structures, relying primarily on simple sentences with frequent structural errors in complex forms. There are numerous grammatical inaccuracies, missing articles, and punctuation mistakes throughout the text, such as 'This diagram given below illustrates working of mechanical arms' and 'the joints that makeup by the arm function'. Errors frequently cause difficulty for the reader and obscure the intended meaning. This level of grammatical control aligns with band 4.5, rounded to 5.0.
See this exact question answered at other band scores — the same prompt compared across bands.
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