Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-08-17
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 following diagram illustrate the information about how a mechanical arm works, and how the joints that formulate the arm function in the as way as those in a people arm.
computer precision has control of motors. it has been three motors, first motor is function of shoulder it use for raises and lower arm additionally, it has been base of usually stationary or occasionally movable.the second motor allows the elbow movements and gave flexibility. the wrist allows gripper flex and rotate to arm. third motor is used for gripper built in sensors control force to the arm. there is arm works for alternative end effectors and last step in arm to paint it.it used for drill holes and weld metal.
overall, the mechanical arm function is three motor and how it has been works diagram shows the arm use to drill holes and it has been weld metal and spray painted.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.0 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 4.5 |
| Overall | 5.0 |
Task Achievement / Task Response — Band 5.0
The response addresses the task by describing the mechanical arm and its joints. However, the information is presented in a somewhat disjointed manner, and the comparison to the human arm is mentioned but not effectively developed. The description of the motors and their specific functions is present, but the explanation of how they work together is unclear. While the main features are identified, the lack of a clear, logical structure makes it difficult for the reader to follow the process. To improve, ensure that each part of the diagram is described with greater clarity and that the relationship between the mechanical components and their human counterparts is explicitly explained.
Coherence and Cohesion — Band 5.0
The essay lacks a clear logical progression. While there is an attempt at paragraphing, the sentences within the paragraphs are often disconnected, making the flow of information choppy. Cohesive devices are used sparingly and sometimes incorrectly, such as 'additionally' and 'overall', which do not effectively link the ideas. The referencing is also weak, with unclear pronoun usage (e.g., 'it has been three motors'). To improve, use a wider range of linking words and ensure that each sentence logically follows the previous one to create a more cohesive narrative.
Lexical Resource — Band 5.0
The vocabulary is quite limited and repetitive. There are several instances of awkward word choices and incorrect collocations, such as 'formulate the arm' instead of 'constitute' or 'make up', and 'people arm' instead of 'human arm'. The phrase 'it has been works' is grammatically incorrect and lexically imprecise. While the student attempts to use technical terms like 'end effectors' and 'sensors', the overall range is insufficient to convey the information with precision. Expanding your vocabulary to include more descriptive verbs and precise technical terminology would significantly enhance the quality of your writing.
Grammatical Range and Accuracy — Band 4.5
The response contains frequent grammatical errors that often impede communication. There are significant issues with subject-verb agreement (e.g., 'the following diagram illustrate'), tense usage (e.g., 'it has been three motors'), and sentence structure. Many sentences are fragmented or lack necessary articles and prepositions. The range of grammatical structures is very limited, consisting mostly of simple, error-prone sentences. To improve, focus on mastering basic sentence construction, particularly subject-verb agreement and the correct use of articles and tenses, before attempting more complex structures.
See this exact question answered at other band scores — the same prompt compared across bands.
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