Band 4.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 4.5 · IELTS Momentum Workout · 2026-11-11

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 4.5)

The diagram summarize that a mecanical arms joint and gripper how excately motorswork.More over whole process how work differenly at the same time and there was a comparison in macanical tool and hand tools.

In addition if i compare they are power scorceis electricity .Moreover there main body part made by metel but there was something different mecanical tools contorls by computer and hand tools contorl by hand .

However subsiquently there was something crucial ,all the body parts follow the computer run command . Like desine ,coad .And hand tool finish all the work by hand with desined and measirung tools

For instance if we look at prudently we can see computer run the different type motors ,similarly all the motor follow the excated model alternatively desine.LIke this way albow ,pivot ,wrist and gripper complete there sations and finish the work.Alternatvely using hand tools they complete all the desine and measurment and finish all the work step by step.

AI examiner evaluation

Task Achievement / Task Response: Band 4.5

The response makes a limited attempt to describe the diagram, mentioning motors and parts such as the elbow, pivot, wrist and gripper. However, it does not clearly summarise how the mechanical arm is arranged or what the labelled joints do, and it introduces an unsupported comparison with hand tools. Claims that both systems use electricity or that the arm’s body is made of metal are not established by the diagram. The key features—computer control of the motors, the base and shoulder, the joints’ movements, and the alternative end-effectors for spraying, drilling and welding—are largely omitted or unclear. To improve, report the diagram’s actual components and functions, then give a concise overview of how they work together.

Coherence and Cohesion: Band 4.5

There is some paragraphing, and the response attempts to connect ideas with phrases such as “In addition,” “However,” and “For instance.” Nevertheless, the information does not progress in a clear order from the computer and motors through the arm to its end-effectors. The repeated comparison with hand tools interrupts the description and is not supported by the task. Several links are difficult to follow, including “all the body parts follow the computer run command” and “complete there sations.” Organise the account by following the diagram’s layout, and use linking words only when they show a genuine relationship. Clear topic sentences and more precise references to each component would make the sequence easier to understand.

Lexical Resource: Band 4.5

The response uses a small set of relevant terms, including “motors,” “pivot,” “wrist” and “gripper,” showing some awareness of the diagram’s vocabulary. However, the range is basic and repetitive, and frequent spelling errors make several words difficult to recognise, for example “mecanical,” “excately,” “albow” and “measirung.” Some choices are also unclear or unsuitable, such as “hand tools” for the human arm and “finish the work” when describing the joints. Use accurate labels from the diagram and verbs that describe their functions, such as rotate, raise, flex and control. Checking spelling and choosing precise technical terms would make the description clearer.

Grammatical Range and Accuracy: Band 4.5

The response attempts a few longer structures, including “if i compare” and “if we look at,” but most sentences are difficult to follow because of frequent problems with sentence formation and grammatical relationships. For example, “The diagram summarize that a mecanical arms joint and gripper how…” lacks a clear clause structure, while “there main body part made” omits necessary grammatical elements. Subject–verb agreement and verb forms are also inconsistent, as in “the diagram summarize” and “motorswork.” Punctuation and sentence boundaries are unreliable, with several ideas joined together. Build accurate simple sentences first—for example, state what the computer controls and what each joint allows—then add subordinate clauses once those patterns are secure.

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