| Lesson Plan |
| Grade: |
Date: 25/02/2026 |
| Subject: Geography |
| Lesson Topic: Coastal processes: influencing factors, marine erosion, sub-aerial processes, transportation and deposition |
Learning Objective/s:
- Describe the key marine and sub‑aerial processes that shape coastlines.
- Explain how wave energy, rock type, tidal range and sea‑level change influence rates of erosion.
- Analyse the role of long‑shore drift in sediment transport and the formation of depositional landforms.
- Evaluate human activities that modify natural coastal processes.
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Materials Needed:
- Projector or interactive whiteboard
- PowerPoint slides with diagrams of coastal processes
- Printed worksheet with case‑study coastline data
- Set of sand, gravel and a shallow tray for a simple erosion demo
- Geo‑maps or digital GIS layers of coastal zones
- Video clip of wave action on different rock types
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Introduction:
Begin with a striking video of waves crashing against contrasting cliffs to hook interest. Ask students what they already know about why some coasts erode quickly while others remain stable. Outline today’s success criteria: identify influencing factors, describe erosion and deposition processes, and link them to characteristic landforms.
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Lesson Structure:
- Do‑now (5') – Quick mind‑map on “What shapes a coastline?” displayed on board; teacher checks key ideas.
- Mini‑lecture (15') – Present influencing factors and marine erosion processes using slides and the cross‑section diagram.
- Interactive activity (10') – Small groups analyse the provided factor table and match each factor to its effect on erosion.
- Demonstration (10') – Hands‑on erosion demo with sand, water, and different rock samples to illustrate hydraulic action and abrasion.
- Guided practice (15') – Students work through a worksheet on long‑shore drift, calculate sample transport using the equation, and discuss results.
- Landform synthesis (10') – Whole‑class brainstorming of depositional features (beaches, spits, bars, tombolos, barrier islands) linking back to processes.
- Check for understanding (5') – Exit‑ticket: one sentence describing how sea‑level rise alters coastal change.
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Conclusion:
Summarise how the interplay of marine and sub‑aerial processes creates the diverse coastal landforms studied today. Students complete an exit ticket stating the most important factor influencing erosion on their local coast. Assign homework: research a real‑world coastal defence project and write a brief paragraph evaluating its effectiveness.
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