Y06W07WR Why Mangroves Matter
Part 1
How to Write
An explanatory text makes a concept, process or system understandable to a reader who is encountering it for the first time. It is written for someone who wants to genuinely understand how or why something works. The tone should be clear and patient — building understanding step by step without assuming prior knowledge.
- Ideas & content: Select the most important information needed to understand the topic. Focus on how and why — explanation is about building genuine understanding, not just describing what exists.
- Structure & cohesion: Move from the general to the specific. Introduce the concept, explain how or why it works, then give examples or consequences. Use cause-and-effect connectives to show relationships between ideas.
- Voice & audience: Write as a knowledgeable guide. Define terms as you introduce them. Avoid jargon without explanation. Your reader should feel guided through the topic, not overwhelmed by it.
- Language choices: Use precise vocabulary and define technical terms clearly. Write in the present tense for ongoing processes. Vary sentence length — shorter sentences help when ideas are complex.
- Conventions: Spell technical vocabulary accurately. Use commas, colons and semicolons to manage complex explanations. Keep sentences clear even when the ideas are demanding.
Common pitfalls: Describing what something is without explaining how or why it works — readers need to understand the mechanism, not just the label. Including too many facts without connecting them into a clear explanation that builds understanding progressively.
Part 2
Your Task Plan for Today
Question: Write the feature article. You have space for one introduction paragraph and three body paragraphs. Choose the facts that best explain the importance of mangroves to your audience, organise them clearly and write in your own words. You do not need to use all of the facts provided.
Stimulus: An environmental education magazine for Years 5 to 7 is publishing a feature explaining what mangrove forests are, why they matter and what threatens them. Below is a collection of facts about mangrove forests. They are not in any particular order.
- Approximately 75% of commercially caught tropical fish species depend on mangrove habitat at some point in their life cycle
- Mangroves are trees and shrubs that grow in coastal intertidal zones - areas regularly flooded by seawater
- Mangrove forests store carbon at a rate up to four times higher than many tropical rainforests, making them important in addressing climate change
- Australia has around 45 native mangrove species out of approximately 80 worldwide
- Approximately 35% of mangrove cover worldwide has been lost since 1980, largely due to coastal development and aquaculture
- The dense root systems of mangroves trap sediment, reducing the amount that flows into coastal waters and onto coral reefs
- Some mangrove species have aerial roots that project above the mud to absorb oxygen from the air
- The sheltered, nutrient-rich waters among mangrove roots provide nursery habitat for hundreds of species of fish, prawns and crabs
- Mangroves protect coastlines by absorbing wave energy, reducing erosion and buffering communities against storm surges
- Mangroves can only survive within narrow temperature and salinity ranges - climate change and rising sea levels threaten many mangrove ecosystems
- Some Aboriginal and Torres Strait Islander communities have long managed mangrove areas as a source of food and materials
- Mangrove restoration projects involve planting seedlings in cleared areas, though establishing a fully functioning ecosystem can take decades
Task Analysis: This task asks you to write a feature article based on the prompt. Your response should demonstrate clear thinking, good organisation and writing appropriate for a Year 6 reader. Focus on showing your understanding through specific examples and thoughtful details.
Quick Plan
Before you write, plan:
- What you’re explaining — define it clearly
- Two or three key points that build understanding
- Real examples that show why this matters
- Why the reader should care — your closing message
Define the key concept
Start by explaining what you’re talking about in clear, simple words. Your reader may have no background knowledge. Make sure they understand the basic idea before adding details.
Examples that teach
Use specific, concrete examples that help readers understand. Show what the idea looks like in real life. Don’t just explain the concept—show it in action.
Paragraph focus
Each paragraph should have one main idea. Start with a topic sentence that tells readers what the paragraph is about, then develop it with facts or examples.
Tone & voice
Write clearly and factually for readers your age. Avoid jargon, or explain technical terms you need. Sound like someone who understands and wants to share knowledge.
- 选择某一选项会使整个页面刷新。
- 在新窗口中打开。