Coastal Life Impacts

Overview

Lesson 4 of 10 in Resilient Coastal Life. Students investigate how people affect local beach ecosystems, distinguish helpful and harmful actions, and explain one cause-and-effect relationship involving coastal pollution or change.

Learning intentions

• WALT investigate how people can affect local beach ecosystems.
• WALT distinguish between helpful and harmful human actions.
• WALT explain how one human action affects coastal plants, animals or habitats.
• WALT communicate our thinking using evidence from photographs and local examples.

Success criteria

• I can sort human actions as helpful, harmful or dependent on how they are carried out.
• I can explain one effect of pollution, litter, trampling, development or introduced species.
• I can create a clear cause-and-effect chain.
• I can use a photograph or local example as evidence.

Curriculum links

• Living World: Ecology — understanding relationships between living things and their environment, including how human actions affect ecosystems.
• Living World: Life Processes — recognising that living things respond to environmental changes.
• Nature of Science: Investigating in Science — asking questions, making observations, identifying patterns and using evidence.
• Nature of Science: Participating and Contributing — considering how people can care for and protect local environments.
• Key competencies — thinking; managing self; relating to others; participating and contributing; using language, symbols and texts.

Lesson structure (45 minutes)

1. 0–5 min — Hook and prior knowledge Display a before-and-after image of a clean beach and a littered or damaged beach using the opening beach comparison. Ask: “What has changed, and who or what might be affected?” Students think, pair and share. Explain that today they will investigate human impacts, not blame individuals.

2. 5–12 min — Build vocabulary and understanding Use the vocabulary and teaching slides to introduce ecosystem, impact, pollution, litter, trampling, development and introduced species. Show a photo and model a simple chain: “Litter on the beach → a bird eats plastic → the bird becomes sick.” Read concise captions aloud; provide the glossary with symbols on the photo-led impact investigation sheet. Check understanding with quick gestures or thumbs up/down.

3. 12–20 min — Collaborative action sort Organise 29 students into mixed groups of four or five. Give each group local community scenario cards from the local community scenario cards and ask them to sort actions into helpful, harmful or “it depends”. Examples may include removing litter, walking on dunes, planting native species, building near the shore and releasing unwanted animals. Groups must justify one decision using “I think this because…”. Circulate and question: “What could happen next?”

4. 20–28 min — Photograph investigation In pairs, students examine the photo examples on the photo-led impact investigation sheet and discuss: What do you notice? What human action is shown? Which coastal life could be affected? What evidence supports your idea? Invite several pairs to share. Accept spoken, drawn or scribed responses.

5. 28–39 min — Cause-and-effect chain Model the structure on the cause-and-effect model and instructions: human action → immediate change → effect on coastal life → possible helpful response. Students choose one impact and complete the chain on the cause-and-effect chain page. Encourage specific examples, such as “Trampling dune plants → fewer plants hold the sand → wind blows more sand away → use marked paths.” Adults or peers can scribe ideas where needed.

6. 39–43 min — Share and improve Pairs share their chains with another pair, using the prompt on the peer-check slide: “The action is… The effect is… My evidence is…” Partners identify one clear link and suggest one improvement. Select two or three examples to discuss with the class.

7. 43–45 min — Plenary and check Return to the opening images using the final reflection slide. Students complete the final sentence on the reflection prompt: “One human action that can affect coastal life is… because…” Collect sheets and address any misconception before the next lesson.

Resources

• the Human Impacts on Coastal Life slide deck
• the photo-led impact investigation sheet
• the local community scenario cards
• Projector or interactive display
• Local beach photographs, if available
• Pencils, coloured pencils and highlighters
• Large paper or whiteboards for group discussion
• Optional headphones and text-to-speech support
• Class map or familiar local beach name

Assessment

• Listen to group explanations during the action sort and check whether students can distinguish helpful and harmful actions.
• Review each cause-and-effect chain for a clear human action, a realistic effect and relevant evidence.
• Use the final reflection as an individual formative check. Note students who confuse an action with its impact or need further support with vocabulary.

Differentiation

• Pre-teach vocabulary with photographs, symbols, gestures and the glossary. Use short captions, a clear sans-serif font, generous spacing, paired reading and text-to-speech for dyslexic learners.
• Provide a completed model, sentence frames such as “When people ___, then ___ may happen”, a reduced choice of photographs and word/picture banks.
• Use mixed-ability groups, frequent checks for understanding, concrete local examples and oral recording, drawing or adult scribing instead of requiring extended writing.
• For the student with Down syndrome, preview the lesson sequence, give one instruction at a time, use repeated visual prompts, offer a role such as picture sorter or evidence finder, and allow additional processing time.
• Support extension through an independently researched, less obvious impact, such as stormwater pollution, artificial night lighting or noise. Students should present a claim, evidence and cause-and-effect explanation to the class.