Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-08-06
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 diagram illustrates the process by how a mechanical arms carried out joints that produce the arm function in the same way as those in a human arm.
Overall, the process consists of 6 main stages, begging with precision control of motor and culminating in base that usually stationary moverable. It is evident that each stage follows a logical sequence with the output of one stage serving as the input for the next until the final result is obtained.
At the initial stage, computer precision control of motor is extracted from elbow which allows to flexible movement. Then it is tranfered wrist which allow gripper or alternative end /effector to flex rotate where it is cleared process. Following this, the function undergoes shoulder movement which rises lower arm after which triggers base before the process proceeds the next stage .
Subsequently, the base is shaped using a various functions. Once this stage has been completed, the different functions is prepared, depending on the process involved. In the final stage, the mechanical arm work as human is distributed thereby completing the entire process.
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 accurately convey the technical information presented in the diagram. The description of the stages is confusing and lacks clarity, making it difficult to follow the mechanical process. For instance, phrases like 'computer precision control of motor is extracted from elbow' do not accurately reflect how such a system functions. The comparison between the mechanical arm and the human arm is mentioned but not developed or explained in a meaningful way. Consequently, the response does not fully address the requirements of the task, as the information provided is often vague or factually unclear based on the visual prompt.
Coherence and Cohesion — Band 5.0
The essay is organised into paragraphs, which is a positive feature. However, the logical progression of ideas is frequently interrupted by unclear phrasing and awkward transitions. While some cohesive devices are used, such as 'Following this' and 'In the final stage', they often connect sentences that lack internal clarity. The referencing is sometimes confusing, particularly in the second paragraph where the relationship between the stages is not clearly established. The overall structure is present, but the flow of information is hindered by the lack of precision in describing the mechanical sequence.
Lexical Resource — Band 5.0
The vocabulary is limited and often used incorrectly, which impacts the clarity of the report. There are several instances of awkward word choices, such as 'begging' (likely a misspelling of 'beginning'), 'stationary moverable', and 'tranfered'. The student struggles to use technical terminology accurately, leading to phrases that are difficult to interpret, such as 'alternative end /effector to flex rotate where it is cleared process'. The range of vocabulary is insufficient to describe the technical process with the necessary precision required for an Academic Task 1 response.
Grammatical Range and Accuracy — Band 5.0
The response contains frequent grammatical errors that often impede communication. There are issues with subject-verb agreement, such as 'the different functions is prepared', and missing articles or prepositions, for example, 'culminating in base' and 'tranfered wrist'. Sentence structures are often simplistic or fragmented, and the attempt at complex sentences frequently results in errors, such as 'The diagram illustrates the process by how a mechanical arms carried out joints'. These persistent errors in basic grammar and sentence construction significantly affect the readability of the text.
See this exact question answered at other band scores — the same prompt compared across bands.
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