Science · Grade 9

Active learning ideas

Renewable Energy for Climate Mitigation

Active learning helps students grasp renewable energy’s complexity because it transforms abstract data into tangible decisions. When students model real-world systems, they connect technical details like emissions calculations to community-scale planning, making climate solutions feel immediate rather than distant.

• Ontario Curriculum Expectations
• HS-ESS3-4
• HS-PS3-3

• 40–60 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Project-Based Learning
• 45 min · Pairs

Data Dive: Life Cycle Emissions Comparison

Provide charts of emissions data for fossil fuels and renewables. In pairs, students calculate totals per kilowatt-hour, create bar graphs, and identify lowest-impact options. Groups present findings and discuss implications for Ontario grids.

Evaluate the potential of transitioning to 100% renewable energy to mitigate climate change.

Facilitation Tip

During the Data Dive, circulate to clarify units (e.g., grams CO2e per kWh) and prompt students to explain why lifecycle stages matter.

What to look for

Present students with a table comparing the life cycle emissions (in grams of CO2 equivalent per kilowatt-hour) for coal, natural gas, solar PV, and wind. Ask them to write one sentence explaining which source has the lowest emissions and one sentence explaining why this comparison is important for climate mitigation.

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

Activity 02

• Project-Based Learning
• 60 min · Small Groups

Community Design Challenge: Renewable Transition Plan

Assign local communities. Small groups research current energy mixes, propose 50% renewable shifts with costs and timelines, and map infrastructure needs. Present plans to class for peer feedback using rubrics.

Compare the life cycle emissions of different energy sources.

Facilitation Tip

For the Community Design Challenge, assign roles (e.g., budget manager, environmental analyst) to ensure every student contributes.

What to look for

Pose the following question to small groups: 'Imagine your town wants to transition to 80% renewable energy within 10 years. What are the top two challenges you anticipate, and what is one specific solution your group would propose for each challenge?'

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

Activity 03

• Project-Based Learning
• 50 min · Small Groups

Model Build: Mini Wind Turbine Test

Students construct turbines from recyclables and fans to generate LED power. Test variables like blade design, measure output, and compare to solar cell setups. Record data and discuss scalability for climate mitigation.

Design a plan for a community to increase its reliance on renewable energy.

Facilitation Tip

In the Mini Wind Turbine Test, ask students to predict how blade angle affects output before testing, then compare predictions to results.

What to look for

Ask students to write down one specific renewable energy technology and one way its implementation can help mitigate climate change. Then, ask them to identify one potential drawback of that technology for a community in Canada.

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

Activity 04

• Project-Based Learning
• 40 min · Whole Class

Debate Rounds: 100% Renewables Feasibility

Divide class into pro and con teams. Research arguments on baseload power and storage. Hold structured debates with evidence cards, then vote and reflect on strongest points.

Evaluate the potential of transitioning to 100% renewable energy to mitigate climate change.

Facilitation Tip

During Debate Rounds, provide a debate framework with roles (e.g., advocate, skeptic) and time limits to keep discussions focused.

What to look for

Present students with a table comparing the life cycle emissions (in grams of CO2 equivalent per kilowatt-hour) for coal, natural gas, solar PV, and wind. Ask them to write one sentence explaining which source has the lowest emissions and one sentence explaining why this comparison is important for climate mitigation.

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

A few notes on teaching this unit

Start with the Data Dive to ground abstract numbers in concrete comparisons, then use the Community Design Challenge to apply those insights in a relatable context. Avoid overwhelming students with too many technologies at once; focus on one or two per activity to build depth. Research shows that hands-on modeling and debate improve retention of complex systems, so prioritize activities where students generate and test their own data.

Students should move from recognizing renewable sources to evaluating their trade-offs through data and design. Success looks like students using evidence to justify choices, explaining limitations, and revising plans based on feedback from peers or data outcomes.

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Watch Out for These Misconceptions

• During the Data Dive activity, watch for students assuming renewable sources have zero emissions. Redirect them by asking, 'Which stages of a solar panel’s life cycle might produce emissions? Use the table to identify where those emissions occur.'

  During the Community Design Challenge, address the idea that solar and wind can power everything without backups by asking groups to map weather patterns and storage needs in their town plan.

• During the Mini Wind Turbine Test, watch for students thinking wind turbines produce steady power. Redirect them by asking, 'How does wind speed today affect your turbine’s output? What does this suggest about relying on wind alone?'

  During the Debate Rounds, address the belief that transitioning to renewables is too expensive by having groups present cost-benefit analyses using data from their designs.

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Methods used in this brief

• Project-Based Learning