Activity 01
Model Building: Slope Stability Tests
Provide trays with sand layers over clay; students add water volumes and tilt to angles of 20, 30, and 45 degrees, observing failure types. Record trigger factors and sketch results. Discuss findings as a class.
Explain the factors that increase the risk of landslides.
Facilitation TipDuring Model Building, circulate with a spray bottle to simulate rainfall and ask guiding questions about how saturation changes slope stability.
What to look forProvide students with three images, each depicting a different type of mass movement (e.g., a slump, a rockfall, a mudflow). Ask students to label each image with the correct term and write one sentence explaining a key factor that likely contributed to that specific event.
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Activity 02
Jigsaw: Irish Landslides
Assign groups real events like the 2019 Kerry landslide; research causes, types, and mitigations using provided sources. Regroup to share expertise and build a class mitigation poster. Present key strategies.
Differentiate between different types of mass movement, such as creeps, slumps, and flows.
Facilitation TipFor the Case Study Jigsaw, assign each group a different Irish landslide example and provide a shared template so all groups present comparable details.
What to look forPresent students with a scenario: 'Heavy rainfall has occurred for several days on a steep, deforested hillside.' Ask students to identify two factors that increase the risk of a landslide in this situation and suggest one mitigation strategy that could have been implemented beforehand.
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Activity 03
Mapping Activity: Local Risk Assessment
Students use Ordnance Survey maps to identify steep slopes near their school or town, mark vegetation cover and drainage. Overlay rainfall data to predict high-risk zones. Propose three mitigation ideas per site.
Assess the strategies used to mitigate the risks of mass movement in vulnerable areas.
Facilitation TipWhen Mapping Activity begins, provide colored pencils for students to mark zones of high, medium, and low risk with clear legends.
What to look forFacilitate a class discussion using the prompt: 'Imagine you are advising a local council in a hilly area of Ireland. What are the three most important pieces of advice you would give them regarding the risks of mass movement and how to manage them?' Encourage students to use key vocabulary and justify their recommendations.
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Activity 04
Debate Pairs: Mitigation Effectiveness
Pairs prepare arguments for or against strategies like walls versus natural vegetation; debate in whole class with evidence from models. Vote on best approaches and justify choices.
Explain the factors that increase the risk of landslides.
Facilitation TipIn Debate Pairs, give each student a role card that defines their stance before they begin researching mitigation strategies.
What to look forProvide students with three images, each depicting a different type of mass movement (e.g., a slump, a rockfall, a mudflow). Ask students to label each image with the correct term and write one sentence explaining a key factor that likely contributed to that specific event.
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Generate Complete Lesson→A few notes on teaching this unit
Experienced teachers approach this topic by balancing hands-on modeling with real-world data, avoiding over-reliance on dramatic videos that reinforce misconceptions about speed and inevitability. They emphasize iterative testing in models so students experience failure as informative, not final. Research suggests connecting Irish case studies to local landscapes builds relevance and retention, as students see their own communities reflected in the risks.
Successful learning looks like students accurately classifying mass movement types, explaining triggers with evidence from their models and case studies, and proposing realistic mitigation strategies grounded in their mapping work. Clear vocabulary use and evidence-based reasoning signal deep understanding.
Watch Out for These Misconceptions
During Model Building: Slope Stability Tests, watch for students assuming mass movements only occur during earthquakes.
Repeat trials with controlled rainfall to show saturation alone triggers slope failure, then ask students to compare dry vs. wet trials in their lab notes.
During Model Building: Slope Stability Tests, watch for students thinking all mass movements are fast and dramatic.
Have students set up a slow creep model with dry soil and ice cubes, then observe daily changes over a week, recording sketches to highlight gradual movement.
During Mapping Activity: Local Risk Assessment, watch for students believing human interventions cannot reduce risks.
Point to mapped examples of terraced hillsides or culverts and ask students to explain how these features alter water flow or slope angles in their reports.
Methods used in this brief