Geography · 10th Grade

Active learning ideas

Megacities and Informal Settlements

Active learning turns abstract megacity statistics into lived experience. Students move from reading about informal settlements to analyzing real photos, role-playing urban planners, and testing their own projections, which builds empathy and critical thinking that passive lessons can’t match.

• Common Core State Standards
• C3: D2.Geo.9.9-12
• C3: D2.Geo.12.9-12

• 25–60 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Gallery Walk
• 40 min · Pairs

Gallery Walk: Informal Settlements Around the World

Post satellite images and short profiles of informal settlements , Dharavi (Mumbai), Kibera (Nairobi), Rocinha (Rio de Janeiro), and Makoko (Lagos) , around the room. Each station includes a guiding question comparing infrastructure, economic activity, and geographic location. Student pairs record observations, then the class identifies shared patterns across all four cases.

Explain why urban growth is outstripping infrastructure in cities like Lagos or Mumbai.

Facilitation Tip

For the Gallery Walk, place images with captions that include population density, employment sectors, and infrastructure gaps for students to analyze in pairs first.

What to look for

Provide students with a short case study of a megacity (e.g., Lagos, Nigeria). Ask them to identify two specific challenges related to rapid urbanization and propose one potential strategy to address each challenge, explaining their reasoning.

• Understand
• Apply
• Analyze
• Create
• Relationship Skills
• Social Awareness

Activity 02

• Simulation Game
• 60 min · Small Groups

Simulation Game: Urban Planning Council Meeting

Assign students roles , municipal government, NGO housing advocate, slum resident, real estate developer , and give each role group a data brief with population projections, land maps, and budget constraints. Groups negotiate a plan to address housing shortages in a fictional megacity, then defend their decisions to the full council.

Analyze how informal economies in slums support the wider city economy.

Facilitation Tip

When running the Urban Planning Council Meeting, give each role (developer, resident, mayor) a 1-minute opening statement with their priorities so the debate stays focused on trade-offs.

What to look for

Facilitate a class discussion using the prompt: 'To what extent are informal settlements a symptom of failed urban planning, and to what extent are they a creative adaptation to challenging circumstances?'. Encourage students to support their arguments with examples from the readings or research.

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Activity 03

• Think-Pair-Share
• 25 min · Pairs

Think-Pair-Share: Myth vs. Reality of Informal Economies

Students individually read a short excerpt contrasting media portrayals of informal settlements with research on their economic vitality , for example, Dharavi's $1 billion recycling industry. Pairs then discuss whether the term 'informal' economy is accurate before sharing conclusions with the class.

Predict what strategies can be used to provide basic services to millions of new urban residents.

Facilitation Tip

In the Think-Pair-Share, provide a table with columns for ‘economic activity’ and ‘social role’ to guide students in identifying patterns in the informal economy examples.

What to look for

Present students with a map of a fictional megacity showing formal and informal settlement areas. Ask them to label potential locations for new schools, hospitals, and public transportation routes, justifying their choices based on population density and existing infrastructure.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Activity 04

• Case Study Analysis
• 35 min · Small Groups

Data Analysis: Projecting Megacity Growth

Using UN urbanization data tables, small groups chart projected population growth for five megacities through 2050 and identify which are growing fastest. Groups must determine what geographic factors , coastal access, proximity to export zones, historical capital city status , explain those growth rates.

Explain why urban growth is outstripping infrastructure in cities like Lagos or Mumbai.

What to look for

Provide students with a short case study of a megacity (e.g., Lagos, Nigeria). Ask them to identify two specific challenges related to rapid urbanization and propose one potential strategy to address each challenge, explaining their reasoning.

• Analyze
• Evaluate
• Create
• Decision-Making
• Self-Management

A few notes on teaching this unit

Teach megacity topics by grounding abstract ideas in concrete cases. Research shows role-play and image analysis help students recognize informal settlements as interconnected systems, not isolated slums. Avoid over-relying on lectures about poverty statistics; instead, let students discover the complexity through data and dialogue.

Successful learning looks like students questioning stereotypes about informal settlements, using data to justify urban planning choices, and explaining how self-built economies serve the city. They should move beyond seeing these areas as problems to recognizing them as parts of urban systems.

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Watch Out for These Misconceptions

• During the Think-Pair-Share activity, watch for students who describe informal settlements only in terms of poverty or disorder.

  Redirect their attention to the provided micro-economy case cards (e.g., Dharavi’s recycling cooperatives) and ask them to identify one specific good or service these communities provide to the formal city, then explain how that changes their view.

• During the Simulation: Urban Planning Council Meeting, listen for arguments that frame informal settlements as problems to be removed or ignored.

  Prompt students to reference the economic integration data displayed on the board (e.g., ‘30% of formal city labor comes from these areas’) and ask them to propose solutions that work with rather than against these communities.

• During the Gallery Walk, note when students assume informal settlements are temporary or illegal.

  Point to the timeline images showing 20-year-old settlements with multi-generational families and ask students to explain how long-term residency changes their understanding of land tenure and belonging.

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Methods used in this brief

• Gallery Walk
• Simulation Game
• Think-Pair-Share
• Case Study Analysis