Identify the task target
Part, input, output or stage
IELTS Academic Reading · Question-type lesson
Diagram Labeling: translate visual position into a search target
Use the diagram title, labels, arrows and spatial relationships to predict the missing part, then locate the exact wording in the passage.
Short answer: Part, input, output or stage. Start from visual position + descriptive passage section, and control the main risk: searching without understanding the diagram.
What this skill changes
Use it with a clear purpose
A useful reading skill changes what you notice, what you ignore and how you prove an answer.
Locate the right evidence
Visual position + descriptive passage section
Control the distractor
Searching without understanding the diagram
WeLearn method
A repeatable process, not a shortcut
Follow these steps until the sequence becomes automatic under time pressure.
Read the diagram title
Decide whether it shows a structure, map or process.
Classify each gap
Predict part, material, location, function, input or output.
Follow visual order
Use arrows and neighbouring labels to narrow the passage zone.
Copy precisely
Check spelling, grammar and the word limit.
Worked contrast
See the difference before you practise
Weak move
Search the passage for every noun visible in the diagram.
Strong move
The blank is an output after the filter stage, so scan the process paragraph for the result produced after filtration.
Guided practice
Apply the method with immediate feedback
Make a decision first. Then use the explanation to compare your reasoning with the evidence.
Guided example · repair enabled
Map the picture before searching
Select a visible marker, name its zone, then locate the exact phrase that labels that component.
How a rain garden filters street runoff
Rain gardens are shallow planted areas designed to collect water from roofs, pavements or roads after heavy rain. Instead of sending all runoff directly into storm drains, a rain garden slows the flow and allows some water to soak into the ground. This can reduce local flooding and limit the amount of oil, metal particles and fertilizer that reaches streams.
The first part of a rain garden is usually an inlet, such as a curb opening or a stone channel, that guides runoff into the planted basin. Designers often place flat stones near this entry point because fast-moving water can otherwise wash soil away. The stones spread the flow and protect the surface.
Once water enters the basin, it passes through a layer of mulch. This layer traps leaves and larger particles while also helping the soil remain moist between storms. Beneath it is a sandy soil mix. The sand creates small spaces that allow water to move downward, while compost in the mix supports plant growth and helps hold some pollutants.
At the lowest part of the system, plant roots and soil organisms continue the filtering process. Deep-rooted native plants are especially useful because their roots keep channels open in the soil. If the garden receives more water than it can absorb, an overflow pipe sends the excess to the drainage system after the first flush has been filtered.
cross-section diagram
NO MORE THAN TWO WORDSRain garden filtration sequence
AEntry edge · Runoff reaches the basin from the upper street side.
Source boundary: WeLearn is authorised to publish this guided-practice passage. EPA guidance supplies candidate context for rain-garden components; it does not verify every simplified sentence or license the WeLearn wording. Review the candidate source.
Independent practice
Transfer the method to a new passage
Complete the full set before feedback opens. This checks whether the process survives without step-by-step prompting.
Independent transfer · no hints
6 labelsGreenhouse air-flow diagram
Complete the entire visual before any key or explanation opens.
cross-section diagram
NO MORE THAN TWO WORDSGreenhouse air-flow diagram
- ALower intakeCooler air enters close to the base of the structure.
- BOpening coverA thin barrier covers the low entry point.
- CPlant-level pathIncoming air crosses the lower occupied zone before rising.
- DRoof exhaustWarm air leaves through the highest opening.
- EHeat-sensitive armA temperature-responsive device operates the upper exit.
- FHigh extraction pointMechanical support can accelerate outward air movement.
How a greenhouse ventilation system works
A simple greenhouse ventilation system controls temperature by moving warm air out and drawing cooler air in. The structure traps sunlight during the day, which warms the soil, benches and plant leaves. Without ventilation, this heat can build up quickly and damage young plants.
Cooler air usually enters through low side vents. These vents are placed near the base of the greenhouse because incoming air should pass across the lower growing area before rising. Some growers fit insect mesh over the openings so that air can enter while pests are kept outside.
As the air warms, it becomes lighter and moves upward. Roof vents or ridge openings allow this warm air to escape. Automatic vent arms may open these vents when the internal temperature rises, using wax cylinders that expand with heat. This means the system can respond even when no worker is present.
Air movement is improved when shade cloth is used correctly. Shade cloth reduces the intensity of direct sunlight but should not block the roof vents. In larger greenhouses, fans may be added near the ridge to pull warm air out faster. The aim is not to create a cold space, but to keep the temperature stable enough for steady plant growth.
ALower intake · Cooler air enters close to the base of the structure.
BOpening cover · A thin barrier covers the low entry point.
CPlant-level path · Incoming air crosses the lower occupied zone before rising.
DRoof exhaust · Warm air leaves through the highest opening.
EHeat-sensitive arm · A temperature-responsive device operates the upper exit.
FHigh extraction point · Mechanical support can accelerate outward air movement.
One complete submissionFeedback stays closed until every diagram label is complete.
Source boundary: WeLearn is authorised to publish this guided-practice passage. The extension source supports the broad side-opening and ridge-vent mechanism; it does not certify this greenhouse description or its wording. Review the candidate source.
Independent feedback is delayed, but answer keys still reach this browser. This is guided Learn practice, not a secure Exam or proctored mode.
Independent protocol
Repeat the set without weakening the evidence rule
- Complete one new Diagram Labeling set without opening feedback.
- For every item, record the exact evidence used for the decision.
- Name the closest distractor and explain its specific failure.
- Repeat only the items where your evidence or reasoning was incomplete.
Mastery check
You are ready to move on when…
- you can state what Diagram Labeling is testing before you search
- you can point to exact passage evidence for every answer
- you can explain why the closest alternative fails
- you preserve scope, polarity, logic and any stated word limit
Loading saved Diagram Labeling progress…
Review and sources
How this Diagram Labeling lesson was reviewed
This material was reviewed in August 2026 to keep the official IELTS Reading format separate from the WeLearn learning strategy used on this page.
Review focus
- Guided, independent and Progress Engine passage pools are separated.
- Every response is checked against its visible marker, zone, landmark, exact evidence, rebuilt label grammar and displayed limit.
- Feedback diagnoses wrong zones, neighbouring parts, direction, grammar, answer boundaries and copied context.
- WeLearn publication authorization and candidate factual context remain explicitly distinct.
Sources used
Official IELTS Academic Reading format: Confirms that Diagram Label Completion relates a detailed textual description to labels on a machine, building or other visual information and that the stated word limit is binding.
WeLearn practice blueprint: Defines visual-zone mapping, held-back transfer, local persistence and the client-key security boundary.
Scope: these WeLearn exercises support academic-reading practice. They are not official IELTS questions and do not predict a band score by themselves.
FAQ en español
Preguntas frecuentes
Esta es la única sección de la lección que se conserva en español.
¿Qué es Diagram Labeling en IELTS Reading?
Es un tipo de pregunta donde completas etiquetas de un diagrama, proceso, mapa técnico o ilustración usando palabras del pasaje. Evalúa lectura localizada y precisión, no dibujo.
¿Cómo encuentro las respuestas en Diagram Labeling?
Primero identifica si el diagrama representa un proceso, una estructura o una secuencia. Luego busca en el texto las partes equivalentes y copia solo las palabras permitidas por la instrucción.
¿Qué errores son comunes en Diagram Labeling?
Copiar demasiadas palabras, ignorar el orden del proceso y elegir una palabra cercana que describe la etapa pero no encaja gramaticalmente en la etiqueta.
Continue your Reading pathway
Turn the skill into exam decisions
Diagram Labeling is presented here as guided WeLearn practice. Answer keys reach the browser for feedback, so this is not a secure Exam or proctored mode. Candidate sources do not by themselves prove authorship or full factual verification.
- Official IELTS Academic Reading format — used to distinguish official task types from WeLearn strategy training.
- WeLearn original guided practice — explanations and distractors are designed for skill transfer, not copied from official questions.