Band 6.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.5 · Cambridge IELTS 20 · 2026-09-29

IELTS Writing Task 1 question

The diagram below shows how fabric is manufactured from bamboo.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Write at least 150 words.

Student answer (Band 6.5)

The diagram illustrates the process of manufacturing fabric from bamboo.

Overall, it is a linear process consisting of several stages, beginning with the harvesting of bamboo and ending with the production of bamboo fabric. The process involves both mechanical and chemical treatments to transform the raw bamboo into a finished textile.

Initially, mature bamboo is harvested and cut into small pieces. These pieces are then crushed to produce a soft, fibrous material. After this, the bamboo fibres undergo a chemical treatment in order to extract cellulose from them. The resulting cellulose is subsequently purified and converted into a thick solution.

In the next stage, this solution is passed through a series of small holes to form long, thin fibres. These fibres are then treated further and dried before being spun into yarn. Finally, the yarn is woven to produce bamboo fabric, which is the finished product.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

The student provides a clear overview of the process, noting that it is a linear process involving both mechanical and chemical treatments. However, the response falls slightly short of the 150-word minimum, containing 146 words. Despite this length penalty, the main stages of the diagram are accurately reported and sequenced, beginning with planting and harvesting bamboo and ending with weaving yarn into fabric. Specific steps, such as cutting into strips, crushing, filtering, softening, spinning, and weaving, are adequately covered, though the omission of the final step depicting finished clothing items is a minor oversight. Overall, the task is addressed well, but the under-length requirement pulls the score down.

Coherence and Cohesion: Band 6.5

The essay is logically structured into four distinct paragraphs, representing an introduction, an overview, and two body paragraphs that trace the steps of the process chronologically. The progression of ideas is clear and easy to follow. Cohesive devices such as 'Overall', 'Initially', 'After this', 'Subsequently', and 'In the next stage' are used effectively to guide the reader through the sequence of events. Referencing is clear throughout, with appropriate use of pronouns and demonstratives like 'These pieces' and 'this solution' to connect sentences smoothly.

Lexical Resource: Band 6.5

The student demonstrates a sufficient range of vocabulary appropriate for an academic process description. Terms such as 'manufacturing', 'mechanical and chemical treatments', 'cellulose', 'purified', and 'solution' show good control of topic-specific vocabulary. There are also successful attempts at less common phrasing, such as 'subsequently purified and converted into a thick solution'. Word choice is generally precise, and there are no noticeable spelling errors or inappropriate collocations that impede communication.

Grammatical Range and Accuracy: Band 6.5

The writing exhibits a good variety of complex structures and passive voice constructions appropriate for describing a process, such as 'the bamboo fibres undergo a chemical treatment' and 'this solution is passed through a series of small holes'. The majority of sentences are error-free, and punctuation is handled correctly throughout. Grammar and sentence structures demonstrate good control, allowing the information to be presented accurately and fluently without causing any difficulty for the reader.

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

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