Academic Writing Task 1 · process diagram

The evolution of simple cooking equipment through three distinct stages

The diagrams below show stages in the development of simple cooking equipment.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

Stages in development of cooking equipment

1.Stage A: A simple stone-based cooking vessel
2.Stage B: A clay shield structure for containing fuel
3.Stage C: A sophisticated metal stove with clay lining, charcoal grate, and air control

Chart redrawn by BandLadder from the data in the original IELTS practice task. Many IELTS practice tasks come from the Cambridge IELTS series (Cambridge University Press & Assessment); all rights in the original tasks remain with their owners.

Band 8 sample answer

The provided diagrams illustrate the evolution of cooking equipment, showcasing three distinct stages of development. Overall, the progression highlights a shift from basic, primitive structures to more sophisticated, engineered designs that incorporate features for improved efficiency and heat control.

In the initial stage, labelled A, cooking is performed using a simple stone arrangement. This primitive method involves placing a cooking vessel directly onto a base of stones, which likely served to elevate the pot and provide a rudimentary foundation for the fire. This stage represents the most basic form of cooking equipment, lacking any integrated structure for fuel containment or airflow management.

Stage B introduces a clay shield, which marks a significant improvement in design. This circular structure acts as a protective barrier, effectively containing the fuel and heat. By enclosing the fire, this design likely increased thermal efficiency compared to the open stone arrangement. Finally, stage C depicts a highly developed metal stove. This advanced model includes a clay lining for insulation, a dedicated grate for charcoal, and a door to regulate airflow and manage ash. Additionally, it features a support for the pot and a handle, demonstrating a clear focus on user convenience and controlled combustion.

198 words. Every figure in the answer comes from the chart above.

How to write about process diagrams

Say how many stages there are and where the process starts and ends.
Use the passive and sequencers: first, after this, once, finally.
Keep every stage; a missing step costs task achievement.

evolution: the gradual development of something into a better form
progression: the process of developing or moving towards a state
rudimentary: involving or limited to basic principles or simple
sophisticated: developed to a high degree of complexity and efficiency
integrated: with various parts linked or coordinated into a whole
thermal efficiency: the effectiveness of converting heat into useful work

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Frequently asked questions

What should the overview say?

The diagrams illustrate the progression of cooking technology from rudimentary stone-based methods to a more complex, efficient metal stove design.

How long should an IELTS Task 1 answer be?

At least 150 words; 170 to 200 is the safe range. Spend about 20 minutes on it and leave 40 for Task 2, which carries twice the marks.

How do I describe process diagrams?

Say how many stages there are and where the process starts and ends. Use the passive and sequencers: first, after this, once, finally. Keep every stage; a missing step costs task achievement.