Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · IELTS Momentum Workout · 2026-10-10

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 5.0)

the following diagram shows how machanical arm works and how a spacific part of mechanical arm to assamble it and also alternative option by human arm.mechanical arm works seven to eight steps are there.

the first step to works mechanical arm are control all motors by computer, in a computer all of things can handle like precision controlling after that three motor are thare and all of them are conact by computer. diagram shows motors are subparts of a computer.each motor have diffrent kind of joints make.

first motor do a vere importent part to join its a base of machanical arm it is shoulder raise and lowers arm.secund motor work is joint a elbow for movements and give a more flexibility its a connation of upper body or lower body,next motor joint a gripe.its a upper body of machanical arm its built in seansors control force and below that it have also wrist to batter gripper. after that a human can do for alternative end-effectors like spray paint, drill holes and weld metal like more customize a machanical arm.

AI examiner evaluation

Task Achievement / Task Response: Band 4.5

You identify several relevant features, including computer control, three motors, the elbow, gripper sensors, the wrist and the alternative tools. However, the account only partially describes how the arm is assembled and operates, and some relationships are misreported: the base is not the shoulder, and the first motor is not described as joining the base. The pivot, which enables rotation, and the shoulder’s raising and lowering function are not clearly distinguished. The overview that there are “seven to eight steps” is also not supported by the diagram, which presents components and functions rather than a numbered sequence. To strengthen the response, give a clear overview of the arm’s main structure, then accurately explain the base, pivot, shoulder, elbow, wrist and end-effector.

Coherence and Cohesion: Band 5.0

There is a basic attempt to order information, moving from computer control and motors to joints and alternative end-effectors. Connectors such as “after that” and “next” help signal this sequence. However, the progression is not consistently clear because the diagram’s components are grouped and described in a confusing order, and some references are difficult to follow—for example, “its” and “it” do not clearly identify which part is meant. The response is also presented as one continuous block, with no distinct overview or paragraphing to guide the reader. Organise it into an introduction and overview, followed by a description of the arm’s structure and then its alternative uses; use linking phrases only where they accurately show relationships.

Lexical Resource: Band 5.0

You use some task-relevant vocabulary, including “precision controlling,” “flexibility,” “built in sensors,” and “alternative end-effectors,” so the reader can recognise several key features. However, the range is limited and many spelling and word-choice errors make parts difficult to understand, such as “machanical,” “spacific,” “conact,” “gripe,” and “seansors.” Some combinations are also unnatural, including “a joint a elbow” and “to batter gripper.” Aim to use the diagram’s exact component names and choose precise verbs for their functions. Checking spelling and collocations would make your meaning clearer and help you describe the mechanical structure more accurately.

Grammatical Range and Accuracy: Band 4.5

The response attempts to connect ideas in longer sentences, for example, “after that three motor are thare and all of them are conact by computer,” but these structures are often faulty. Errors with articles, plurals and agreement occur throughout: “three motor,” “each motor have,” and “a elbow.” Verb forms and sentence construction are also frequently inaccurate, as in “the first step to works mechanical arm are control all motors.” These problems sometimes make the relationships between parts unclear. Use shorter, complete sentences first, with a clear subject and verb—for example, “The computer controls three motors.” Then practise adding accurate clauses to explain each component’s function, while checking articles, plural endings and verb agreement.

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