Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-11-09

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 chart illustrates a mechanical arm works and the joints that make up the arm function similar to human arm.

Overall, it is mechanical process chart, starting with control of motors and ending with alternative end-effectors.

It is evident that initially comupter quality is checked as per precisio control of motors. Spray paint, drill holes and weld metal is required to complete this project. After that three motors are attached for furthwe working, firts motor in the first part of the hand ( claw ) to grip something and second near elbow point that allows movements and flexibilities and third positioned to the shoulder side to raise or lower the arm.

Moving towards claw and elbow there is a wrist that allows the gripper to rotate.

The pivot which helps the arm to rotate with more flexibility. The base of the mechanical arm is movable, which can be moved occasionally according to need.

AI examiner evaluation

Task Achievement / Task Response: Band 5.0

You identify the diagram as a mechanical arm and mention several relevant parts, including the motors, wrist, pivot, base and alternative end-effectors. However, the account only partially reports how the system works: the overview says it starts with motor control and ends with alternative tools, but the description does not clearly explain the arm’s main arrangement or how the computer controls the motors. Some functions are misassigned: the first motor is not described as controlling the gripper, and the diagram links the shoulder to raising and lowering the arm, not the third motor specifically. The base is usually stationary and only occasionally movable, rather than simply movable. The response is also five words below the 150-word minimum; develop the key features more fully.

Coherence and Cohesion: Band 5.0

There is some paragraphing, and the response moves from an overview to details about the motors and then the wrist, pivot and base. This gives the reader a basic sense of organisation. However, the progression is not consistently clear: “After that” suggests a sequence of stages, although the diagram shows connected components rather than a process unfolding over time. The motor descriptions are difficult to follow because the locations and functions are presented in one long sentence, and “Moving towards claw and elbow” does not clearly signal which part is being described. Use a clearer order, such as from the computer and motors down through the arm to the base, and use linking phrases that show position or function accurately.

Lexical Resource: Band 5.0

You use some relevant technical vocabulary, including “motors,” “gripper,” “wrist,” “pivot” and “end-effectors,” which helps identify the diagram’s components. However, the range is limited and several choices or spellings make the description less precise, including “comupter,” “precisio,” “furthwe” and “firts.” Some expressions are also awkward or inaccurate: “computer quality is checked” does not describe the diagram, while “first part of the hand (claw)” is less precise than naming the gripper. Aim for accurate component names and natural collocations, such as “the computer controls the motors” and “the gripper’s sensors regulate its force.” Proofreading spelling would also make the information easier to understand.

Grammatical Range and Accuracy: Band 5.0

The response includes a few simple and linked sentence forms, and the reader can generally identify the components being discussed. However, the range is limited, and errors occur frequently enough to make some relationships unclear. For example, “The chart illustrates a mechanical arm works” needs a structure such as “illustrates how a mechanical arm works,” while “the joints … function similar to human arm” is missing grammatical elements. The sentence beginning “After that three motors are attached” combines several descriptions without clear grammatical control, and “The pivot which helps the arm to rotate” is a sentence fragment. Practise complete sentences with accurate articles and verb forms, and separate the motor functions into clearer clauses.

See this exact question answered at other band scores. The same prompt compared across bands.

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