Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-09-17
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 given diagram illustrates about the work of arm mechanical and joints that make the arm function same as human arm. while, the process has been completed with the help of several appartus such as spray, drill, weld metal and many more.
By visualising the given information, it is cleary seen that, a computer attached with three motors for control the computer First motor is attached to base of mechanical arm shoulder lower arm as well as with a pivot that enables arm to rotate. Apart from this, the middle motor is connected to elbow of mechanical arm that gives flexibility to mechanical arm. Along with this, there is a wrist in middle that allows gripper to flex and rotates. Besides that, Third motor joined with gripper that built sensor and contro force.
To conclude, this process has benn completed with the help of several steps and every step is important if we forget any step than the process will get halted.
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 summarize the diagram showing how a mechanical arm works. However, it fails to fully cover all parts of the task and misinterprets several key relationships. For instance, the text states that 'First motor is attached to base of mechanical arm shoulder lower arm as well as with a pivot,' whereas the diagram shows three separate motors connecting independently to the elbow, wrist/arm, and gripper, under the precision control of a computer. Additionally, the overview is weak, containing non-academic phrasing like 'various appartus such as spray, drill, weld metal.' While the main features are touched upon, the lack of accurate reporting and poor development place this at Band 5.0.
Coherence and Cohesion — Band 5.0
The response is divided into three brief paragraphs, attempting an introduction, body, and conclusion. However, the logical progression is frequently disrupted by awkward transitions and confusing sentence structures, such as 'while, the process has been completed...' and 'Besides that, Third motor joined with gripper...' Paragraphing is superficial, and the conclusion introduces informal commentary ('if we forget any step than the process will get halted') rather than summarizing the main trends or features of the diagram. Cohesive devices are either missing or misused, resulting in mechanical and disjointed flow, which aligns with Band 5.0 descriptors.
Lexical Resource — Band 5.0
Vocabulary is limited and repetitive. The student uses basic terms and makes multiple spelling and word-choice errors, such as 'appartus' instead of apparatus, 'cleary' instead of clearly, 'contro' instead of control, and 'benn' instead of been. Attempts to use less common vocabulary fail due to inaccurate collocations and awkward phrasing, such as 'work of arm mechanical' instead of 'mechanism of a mechanical arm' and 'built sensor and contro force' instead of 'built-in sensors control force.' These lexical inaccuracies occasionally impede smooth communication, justifying a Band 5.0.
Grammatical Range and Accuracy — Band 5.0
The writer demonstrates a very limited range of grammatical structures, relying heavily on simple or poorly formed complex sentences. There are frequent, noticeable errors in tense, subject-verb agreement, and prepositions throughout the text, such as 'The given diagram illustrates about' (incorrect inclusion of 'about'), 'a computer attached with three motors for control the computer' (grammatically fractured), and 'this process has benn completed.' Punctuation is also erratic, with misplaced commas breaking up basic syntactic units. Because complex structures are frequently faulty and errors cause difficulty for the reader, this merits a 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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