Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · IELTS Momentum Workout · 2026-10-04

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 6.0)

The diagram depicts the production and working of the mechanical arm working similarly to a human arm.

Overall, it is evident that the central computer control the entire system. Additionally, the robotic arm closely mimics the human anatomy by replacing human parts with mechanical parts.

First, in term of structure the machine has a strong base that hold the whole structure. A central computer connects to a network system to control the movements. To provide power three separate motors are installed in the arm, and each motor perform its specific job.

Looking closer to the structure the arm uses a series of pivots that enables the arm to rotate that act same as joints of the human arm. On the other hand, wrists and grippers also working equivalent to the human wrists and fingers are used to grip anything. While pivot corresponding to shoulder for movement of the full arm.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

The response addresses the main parts of the task by outlining how the mechanical arm functions and comparing its parts to human anatomy, such as the pivot acting as a shoulder and wrists functioning like human joints. However, the coverage remains somewhat uneven and general. While key components like the computer, motors, base, and grippers are mentioned, some details are left under-developed. For instance, the specific functions of alternative end-effectors like spray painting, drilling, or welding are omitted, and the description of how the computer precisely controls the motors lacks sufficient expansion. To reach a higher level, the response would need to select and report all key mechanical and anatomical comparisons more thoroughly.

Coherence and Cohesion: Band 6.0

The text demonstrates a coherent overall arrangement with a clear attempt to structure the information logically, opening with an overview and moving through the structural features. Paragraphing is utilized to separate different aspects of the diagram, such as the base and motors in one section and the joints in another. However, cohesion is occasionally mechanical or faulty. Phrases like 'First, in term of structure' and 'Looking closer to the structure' feel repetitive and abrupt, while referencing between sentences is not always smooth. To improve coherence, the writer should employ a wider and more natural variety of cohesive devices to link ideas seamlessly across paragraphs.

Lexical Resource: Band 6.0

An adequate range of vocabulary is used to accomplish the task, successfully incorporating terms from the diagram such as 'base', 'motors', 'pivots', 'wrists', and 'grippers'. The writer also attempts less common vocabulary by discussing anatomical analogies like 'mimics the human anatomy' and 'equivalent to the human wrists and fingers'. However, there are some noticeable word choice and collocation slips, such as 'production and working' instead of 'operation', 'in term of structure' instead of 'in terms of structure', and issues with word forms like 'control' instead of 'controls' in the subject-verb context. These inaccuracies do not impede communication but prevent the vocabulary from reaching a higher standard.

Grammatical Range and Accuracy: Band 5.5

The writing exhibits a mix of simple and some complex sentence forms, demonstrating a baseline control of sentence structure. There are instances of accurate phrasing, but the text contains a noticeable cluster of grammatical errors and punctuation issues. Examples include subject-verb agreement slips such as 'the central computer control' and 'each motor perform', missing articles as in 'machine has a strong base that hold', and awkward phrasing like 'wrists and grippers also working equivalent'. Punctuation is also sparse or inaccurate in places. These errors represent a mix of simple and complex structures where some mistakes persist, though they rarely impede overall communication.

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