Science · Primary 5

Active learning ideas

Renewable and Non-Renewable Energy Sources

Active learning works for this topic because students must move beyond abstract definitions to compare real-world systems. By sorting, building, and debating energy sources, students anchor their understanding in concrete examples rather than memorized facts. Hands-on tasks reveal the trade-offs between renewables and non-renewables in ways that lectures alone cannot.

• MOE Syllabus Outcomes
• MOE: Energy Sources - G7
• MOE: Environmental Impact - G7

• 30–50 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Formal Debate
• 30 min · Small Groups

Card Sort: Energy Sources Classification

Provide cards listing energy sources, renewal status, and impacts. In small groups, students sort cards into renewable and non-renewable piles, then justify placements with evidence from descriptions. Groups share one example with the class.

Differentiate between renewable and non-renewable energy sources with examples.

Facilitation Tip

During the Card Sort, circulate with open-ended questions like 'What evidence made you place this source here?' to push students beyond surface-level labels.

What to look for

Present students with a list of 10 energy sources (e.g., solar, coal, wind, petroleum, biomass, natural gas, hydropower, geothermal, nuclear, tidal). Ask them to sort these into two columns: 'Renewable' and 'Non-Renewable', and briefly explain their reasoning for two choices.

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

Activity 02

• Formal Debate
• 45 min · Pairs

Model Build: Wind Turbine Challenge

Pairs construct simple pinwheels from paper and pins to model wind energy. Test in fans, measure spin rates, and compare to a 'coal model' using battery fans. Discuss reliability and renewability.

Analyze the environmental advantages and disadvantages of various energy sources.

Facilitation Tip

When building wind turbines, remind students to test one variable at a time (e.g., blade angle) and record results in a shared data table.

What to look for

Pose the question: 'If Singapore is an island nation with limited land, what are the biggest challenges and opportunities in switching to renewable energy sources?' Facilitate a class discussion, prompting students to consider Singapore's specific context and the pros and cons of different renewable options.

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

Activity 03

• Formal Debate
• 40 min · Small Groups

Pros-Cons Debate: Energy Debate Stations

Set up stations for solar, coal, etc. Small groups rotate, noting advantages and disadvantages on charts. Conclude with whole-class vote on best source for Singapore.

Justify the shift towards greater reliance on renewable energy sources.

Facilitation Tip

For the Pros-Cons Debate, assign roles explicitly and provide sentence starters like 'One advantage of geothermal is...' to support struggling students.

What to look for

Ask students to write down one renewable energy source and one non-renewable energy source. For each, they should list one positive environmental impact of the renewable source and one negative environmental impact of the non-renewable source.

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

Activity 04

• Formal Debate
• 50 min · Small Groups

School Energy Audit Walk

Small groups walk school grounds, identify energy sources like lights and AC, classify them, and suggest renewable swaps. Compile findings into a class report.

Differentiate between renewable and non-renewable energy sources with examples.

Facilitation Tip

On the School Energy Audit Walk, give students clipboards with a simple checklist to focus their observations and avoid overwhelming them with too many details.

What to look for

Present students with a list of 10 energy sources (e.g., solar, coal, wind, petroleum, biomass, natural gas, hydropower, geothermal, nuclear, tidal). Ask them to sort these into two columns: 'Renewable' and 'Non-Renewable', and briefly explain their reasoning for two choices.

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

A few notes on teaching this unit

Experienced teachers approach this topic by starting with students' prior knowledge through quick writes or brainstorms about where energy comes from. Avoid overwhelming students with too much content upfront; instead, let them discover patterns through activities like the Card Sort. Research shows that students retain concepts better when they experience the limitations of renewables firsthand, such as testing a solar oven in different light conditions or measuring energy output from a small wind turbine model.

Successful learning looks like students confidently classifying energy sources, explaining their choices with evidence, and weighing environmental impacts through structured discussion. They should connect classroom activities to real-world systems, such as recognizing why solar panels might not work at night or why wind farms need backup power. Misconceptions should shift toward nuanced, evidence-based reasoning.

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Watch Out for These Misconceptions

• During the Model Build: Wind Turbine Challenge, watch for students assuming wind turbines work equally well in all conditions.

  Use the turbine models to test blade design and wind speed; have students graph output under different conditions and discuss why turbines need storage or backup power.

• During the Card Sort: Energy Sources Classification, watch for students labeling all renewables as 'always available' or 'cheap'.

  Ask students to sort cards twice: first by availability, then by cost. During the debrief, highlight that biomass depends on crop cycles and solar requires sunlight, challenging their assumptions.

• During the Pros-Cons Debate: Energy Debate Stations, watch for students claiming all renewables are cheaper than fossil fuels without evidence.

  Provide cost-benefit charts during the debate and ask students to reference data when comparing initial setup costs versus long-term savings for each energy type.

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Methods used in this brief

• Formal Debate