Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-09-03
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 given process diagram shows the how the mechanical arm function,and how they connect with eachother like human arm.
Overall, it can be observed that it is invoved in 3 differnt types of motor .It showes the connection between mechanical ARM.
The first step is check the information about motor in computer . After that segregate the motor according to their function .Every motor play a different role.Regarding the first motor it is connect to base form of mechanical arm.It work as a shoulder of machine .It helps to raises arm of machine.As well as include pivot to rotation.
Regarding the second and third motor function ,it has play major role. Second motor give flexibility to machine .It has work as a elbow .
By connecting to the two motors machine is half of complete.To the third motor work as a gripper .it is a sensor control force.Now ,the mechanical arm is ready to work .After that it neccessary to show in computer to check it is correct joinning or not.
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 response attempts to describe the mechanical arm, but it fails to provide a clear, accurate summary of the process. The description is fragmented and lacks a logical flow, often misinterpreting the diagram's technical nature. For instance, the claim that the first step is 'check the information about motor in computer' is not supported by the visual evidence. The comparison between the mechanical joints and human anatomy is mentioned but not effectively developed. Key features, such as the specific movement axes or the integration of the components, are missing or described in a confusing manner. The response lacks a clear overview, which is essential for a Band 6 or higher.
Coherence and Cohesion — Band 5.0
The essay is divided into short, disjointed paragraphs that do not facilitate a logical progression of information. While some cohesive devices are used (e.g., 'After that', 'Regarding'), they are often used mechanically or incorrectly, such as 'Regarding the first motor it is connect to base form'. The referencing is frequently unclear, making it difficult for the reader to follow the sequence of the mechanical assembly. The lack of a clear introduction and a cohesive overview significantly impacts the overall readability and structure of the report.
Lexical Resource — Band 5.0
The vocabulary is limited and repetitive, relying on basic terms like 'motor', 'machine', and 'work'. There are frequent errors in word choice and collocation, such as 'correct joinning' instead of 'correct assembly' or 'base form' instead of 'base'. The student struggles to use precise technical terminology appropriate for a process description. Spelling errors, such as 'invoved', 'differnt', 'showes', and 'neccessary', are frequent and occasionally distract the reader, though they do not fully impede communication.
Grammatical Range and Accuracy — Band 5.0
The response relies heavily on simple sentence structures, and attempts at more complex sentences are consistently marred by grammatical errors. There are frequent issues with subject-verb agreement (e.g., 'mechanical arm function', 'Every motor play'), incorrect verb tenses, and missing articles. Punctuation is also problematic, with inconsistent spacing around commas and periods. These persistent errors in basic grammar and sentence construction limit the range of structures demonstrated and frequently interfere with the clarity of the technical explanation.
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