Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · IELTS Momentum Workout · 2026-11-10

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 given diagram describes the working process of a mechanical arm drawing similarities between the joints in the mechanical arm and those in the human arm.

Overall, the diagram explains the various parts of the mechanical arm and the involvement of digital gadgets like computer which is involved in the precision control of motors.

The mechanical arm has a solid base which is stationary in most cases.The shoulder heps in raising the arm above and below.Moreover, the pivot enables the arm to rotate providing dextrity to the arm. The gripper provides control force with the aid of sensors.The elbow allows movement and is vital for the flexibility of the arm .

Motors are present in all parts which is crucial for the fluid movement for the arm.These motors rotate continuosly for uninterrupted operation of the mechanical arm.Computers are involved in controlling the motors to avoid failures and precision mistakes.The mechanical arm has various uses . For instance, it is utilized fo spraying paint, drilling holes and welding metals.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the diagram’s main subject and report several relevant functions, including the shoulder raising and lowering the arm, the pivot enabling rotation, and the elbow providing flexibility. You also mention the computer’s precision control and the alternative uses of spraying, drilling and welding. However, the overview is broad rather than a clear summary of how the components work together. Some details are inaccurate or incomplete: the diagram shows three motors linked to different parts, not motors “present in all parts,” and it does not state that they rotate continuously or prevent failures. The wrist’s flexing or rotating function and the gripper’s force control could also be explained more precisely. Prioritise the control system, the arm’s main joints and its interchangeable end-effectors, avoiding unsupported claims.

Coherence and Cohesion: Band 6.0

The response has a recognisable structure: an introduction, an overview and two paragraphs of details. The information is generally grouped by topic, and connectors such as “Moreover” and “For instance” help signal relationships. However, the progression is not fully clear: the description moves from the base and joints to the motors, then returns to the computer, without explaining the sequence or connections among these parts. Some linking is mechanical, and the overview repeats the computer-control point that appears later. Improve cohesion by organising the body from the control system and motors to the base, joints and end-effector, using clear references such as “these motors” only when their links have been established. This would make the relationships easier to follow.

Lexical Resource: Band 6.0

You use an adequate range of task-related vocabulary, including “precision control,” “stationary,” “pivot,” “flexibility” and “sensors.” These terms help convey the diagram’s functions, and the examples of spraying, drilling and welding are relevant. There are, however, some spelling errors and imprecise or unnatural choices, such as “dextrity,” “continuosly,” “digital gadgets” and “fluid movement for the arm.” “Digital gadgets” is too informal for the computer shown, while “control force” does not clearly express that sensors regulate the gripper’s force. Aim for precise technical collocations and check spelling; for example, describe the computer as a control unit and say that sensors regulate gripping force. This would make the vocabulary more accurate and natural.

Grammatical Range and Accuracy: Band 5.5

You attempt both simple and more complex forms, including the opening participle phrase “drawing similarities…” and the sentence beginning “For instance.” Most ideas remain understandable, but some grammatical errors and punctuation problems reduce accuracy. For example, “the involvement of digital gadgets like computer which is involved” has awkward clause structure and a missing article, while “Motors are present in all parts which is crucial” has an agreement problem. There are also missing spaces after full stops and inconsistent spacing before punctuation, as in “cases.The” and “arm .” Work on article use, subject–verb agreement and sentence boundaries. Prefer direct constructions, such as “A computer controls the motors precisely,” and proofread punctuation while retaining some varied sentence structures.

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