Identify the task target
Main idea and paragraph function
IELTS Academic Reading · Question-type lesson
Choose the heading that captures the paragraph’s central purpose rather than one repeated word, example or memorable detail.
Short answer: Main idea and paragraph function. Start from opening, development, contrast and closing, and control the main risk: selecting a detail-level heading.
What this skill changes
A useful reading skill changes what you notice, what you ignore and how you prove an answer.
Main idea and paragraph function
Opening, development, contrast and closing
Selecting a detail-level heading
WeLearn method
Follow these steps until the sequence becomes automatic under time pressure.
Form your own short label before studying every heading.
Ask whether the paragraph defines, contrasts, explains, evaluates or solves.
Reject options that cover only one example or sentence.
The chosen heading should work as a title for the entire paragraph.
Worked contrast
Choose the heading with the most vocabulary overlap.
Choose “A limitation of the pilot” because the paragraph’s opening, evidence and conclusion all develop that function.
Guided practice
Make a decision first. Then use the explanation to compare your reasoning with the evidence.
Paragraph A · Explain a cause
A city does not heat evenly. Dark roofs, roads and other developed surfaces absorb and hold more solar energy than many rural surfaces. Buildings can also slow the release of heat after sunset. The result is a temperature difference both between city and countryside and between neighbourhoods inside the same city.
Source boundary: Original WeLearn passage grounded in EPA explanations of heat islands, vegetation and cool roofs. Review the primary source (opens in a new tab).
Independent practice
Complete the full set before feedback opens. This checks whether the process survives without step-by-step prompting.
Feedback remains closed until all five headings are submitted.
Paragraph A
Mangrove decline was already a concern in parts of Puerto Rico, but consecutive hurricanes made the risk impossible to ignore. Damaged forests left coastal communities with less natural protection and weakened habitat. The storms did not create every problem; they transformed a gradual loss into an urgent restoration programme.
Paragraph B
A healthy mangrove forest does more than occupy the shoreline. Dense roots interrupt moving water and reduce wave energy, while branches and leaves help break the force of wind. The forest is therefore a flexible natural barrier that can lessen erosion, flooding and storm damage for areas behind it.
Paragraph C
Planting seedlings is not always the first useful step. Roads, debris or altered channels may prevent tides from reaching damaged ground in the right pattern. Restoration teams can begin by reopening water routes and improving site conditions. New trees then have a better chance to establish rather than being placed into a system that still cannot support them.
Paragraph D
The project also depends on people who live near the restoration area. Local labourers and volunteers can clear channels, plant trees and monitor recovery. When young participants receive training and paid experience, environmental work becomes a route into employment as well as a way to rebuild the coast.
Paragraph E
Storm protection is only one reason to recover a mangrove forest. The habitat can support fish and birds, store coastal carbon and contribute to recreation and tourism. Evaluation should therefore examine ecological and community outcomes over time, rather than treating the shoreline as a single-purpose defence structure.
Source boundary: Original WeLearn passage grounded in NOAA reporting on restoration, coastal protection and community partnerships. Review the primary source (opens in a new tab).
Independent protocol
Mastery check
Recognition levels are followed by four complete passages. In-progress answers, elapsed time, best scores and unlocked levels stay on this device.
Match each paragraph to the heading that captures what the writer is doing, not merely the topic.
Sleep looks passive from the outside, yet the sleeping brain remains busy. It cycles through different states and continues to process information gathered while a person was awake. Researchers therefore treat sleep as part of learning itself, not simply as an empty interval between two periods of study.
Some research questions require more observations than one small team can collect or inspect. Citizen-science projects divide that work among many volunteers. A single report may be modest, but thousands of reports can reveal patterns across a wide area or help researchers examine an enormous image archive.
A seed collection protects options that agriculture may need later. A variety that is uncommon today could contain a useful response to drought, disease or a changing climate. Preserving genetic diversity is therefore not nostalgia; it is a way to keep biological choices available for future research and crop improvement.
Interest in long-distance rail has revived as travellers and governments look for alternatives to some flights and car journeys. Announcements alone do not create a network, so European institutions selected pilot services to test new or improved cross-border links. The trials turn broad demand into routes that operators can evaluate in practice.
The engine counts reasoning errors, not just wrong answers, so your review has a specific target.
Training mode only: answer keys and explanations are delivered to the browser for feedback. This engine does not claim an IELTS band score and must not be used as a secure exam.
Review and sources
This material was reviewed in August 2026 to keep the official IELTS Reading format separate from the WeLearn learning strategy used on this page.
Official IELTS Academic Reading format: Confirms Matching Headings as a Reading task family based on the main idea of a paragraph or section and the use of extra headings.
WeLearn practice blueprint: Defines held-back transfer, non-reuse, explicit distractor analysis, local progress 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
Esta es la única sección de la lección que se conserva en español.
Evalúa si puedes identificar la idea principal de un párrafo completo. No se trata de encontrar una palabra repetida, sino de reconocer la función global del párrafo.
Muchas opciones mencionan detalles reales del texto, pero no resumen el párrafo entero. IELTS usa esos detalles como distractores para separar comprensión local de idea central.
Conviene leer rápido las opciones para conocer el mapa temático, pero la decisión debe salir del párrafo: primera oración, cambio de dirección, repetición de ideas y conclusión.
Continue your Reading pathway
Matching Headings 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.