Geography · Year 10

Active learning ideas

Green Infrastructure in Cities

Active learning works especially well for this topic because hands-on modeling, debates, and mapping let students measure and see environmental processes that are otherwise invisible, like stormwater absorption or air purification. When students build models or collect local data, abstract concepts become concrete, helping them connect classroom ideas to real-world outcomes.

• ACARA Content Descriptions
• AC9G10K03
• AC9G10S05

• 35–50 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Project-Based Learning
• 45 min · Small Groups

Model Building: Permeable Pavement Demo

Provide trays with soil, gravel, and sand to represent permeable surfaces versus impervious concrete. Pour water to simulate rain and measure infiltration rates. Groups compare results and calculate percentage reductions in runoff.

Evaluate how green spaces improve air quality and biodiversity in urban environments.

Facilitation Tip

During the Permeable Pavement Demo, circulate with a timer and ask each group to predict how much water their model will absorb before testing, to build anticipation and reinforce hypothesis-making skills.

What to look for

On an index card, have students write: 1) One specific benefit of green infrastructure for urban water management. 2) One potential challenge to implementing green infrastructure in a dense city like Brisbane. 3) A question they still have about the topic.

• Apply
• Analyze
• Evaluate
• Create
• Self-Management
• Relationship Skills
• Decision-Making

Activity 02

• Jigsaw
• 50 min · Small Groups

Jigsaw: City Comparisons

Assign Australian cities like Perth and Brisbane to groups for research on green infrastructure projects. Each group presents findings on air quality or biodiversity impacts. Class assembles a shared scorecard to evaluate effectiveness.

Analyze the economic benefits of investing in green infrastructure.

Facilitation Tip

For the Case Study Jigsaw, assign each expert group a city and provide a data packet with metrics like flood reduction, temperature drop, and species count so students practice analyzing real numbers.

What to look for

Pose the following to small groups: 'Imagine your school is considering installing a green roof or permeable paving. What are the top two arguments you would present to the school board for or against this investment, considering both environmental and economic factors?'

• Understand
• Analyze
• Evaluate
• Relationship Skills
• Self-Management

Activity 03

• Project-Based Learning
• 35 min · Pairs

Debate Pairs: Economic Trade-Offs

Pairs prepare arguments for and against investing in green roofs over traditional buildings, using cost-benefit data. They switch sides midway to refine counterpoints, then vote class-wide on best investments.

Predict the impact of increased green infrastructure on urban water management.

Facilitation Tip

While running the Debate Pairs activity, give each pair a notecard with pro and con points to structure their arguments, ensuring every student contributes evidence before voting.

What to look for

Display images of different green infrastructure elements (e.g., a park, a green roof, a permeable driveway). Ask students to identify each element and briefly explain one way it contributes to urban sustainability. Use a thumbs-up/thumbs-down system for quick comprehension checks.

• Apply
• Analyze
• Evaluate
• Create
• Self-Management
• Relationship Skills
• Decision-Making

Activity 04

• Project-Based Learning
• 40 min · Pairs

Mapping Walk: Local Green Spaces

Students walk school grounds or nearby areas, sketching and noting green features. Back in class, they layer findings on a shared map to propose improvements for water management.

Evaluate how green spaces improve air quality and biodiversity in urban environments.

Facilitation Tip

On the Mapping Walk, provide clipboards with a simple biodiversity checklist and a map template so students record observations systematically and connect patterns to green space location.

What to look for

On an index card, have students write: 1) One specific benefit of green infrastructure for urban water management. 2) One potential challenge to implementing green infrastructure in a dense city like Brisbane. 3) A question they still have about the topic.

• Apply
• Analyze
• Evaluate
• Create
• Self-Management
• Relationship Skills
• Decision-Making

A few notes on teaching this unit

Teachers should ground each activity in local context by using maps and data from nearby cities or school grounds, making the topic relevant and engaging. Avoid over-relying on textbook images; instead, use real measurements students take themselves to build credibility. Research shows that when students collect their own environmental data, their understanding of systems thinking improves significantly, so prioritize hands-on data collection and analysis over lectures.

By the end of these activities, students should be able to explain at least two measurable benefits of green infrastructure, compare costs and benefits in a debate, and gather evidence from local spaces to support their claims. Look for clear links between evidence and conclusions in discussions, models, and maps.

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Watch Out for These Misconceptions

• During the Permeable Pavement Demo, watch for students who say green infrastructure is only for looks.

  Have students measure and compare water levels in their trays after pouring equal amounts of water on permeable and impermeable surfaces, then discuss how this visual difference connects to stormwater management and flood reduction.

• During the Debate Pairs activity, watch for students who insist green infrastructure always costs more than traditional solutions.

  Provide each pair with a simple cost-benefit table that lists upfront costs and long-term savings for green and gray infrastructure, then ask them to calculate which option saves more money after 10 years based on the data.

• During the Mapping Walk, watch for students who believe urban green spaces have little impact on biodiversity.

  Ask students to tally the number of plant species and animal sightings in green spaces versus paved areas, then compare their tallies to published biodiversity data from local studies to challenge their assumptions.

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Methods used in this brief

• Project-Based Learning
• Jigsaw