Curious Investigators: Exploring Our World · 3rd Class

Active learning ideas

Renewable Energy Solutions

Active learning helps students move beyond abstract definitions of renewable energy by engaging with real materials and problems. When students touch, build, and test devices, they grasp both the science and the trade-offs in ways that lectures alone cannot match. For this topic, hands-on work reveals why solutions must fit local conditions, a critical insight for Ireland’s sustainability goals.

• NCCA Curriculum Specifications
• NCCA: Primary - Environmental Awareness and Care

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

Activity 01

• Inquiry Circle
• 30 min · Small Groups

Card Sort: Renewable vs Non-Renewable

Provide picture cards of energy sources like solar panels, coal mines, wind turbines, and oil rigs. Students sort into two categories, then list one benefit for each renewable source on chart paper. Groups share findings with the class.

Differentiate between renewable and non-renewable energy sources.

Facilitation Tip

During the Card Sort, circulate to listen for misclassifications based on appearance rather than source properties, and ask guiding questions like, 'Does this source ever run out?'

What to look for

Present students with a list of energy sources (e.g., coal, sun, wind, oil, river water). Ask them to sort these into two columns: 'Renewable' and 'Non-renewable' and briefly explain their reasoning for one item in each column.

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Activity 02

• Inquiry Circle
• 45 min · Pairs

Model Build: Simple Wind Turbine

Using straws, pins, paper blades, and a small motor, pairs construct a pinwheel turbine. Test with a hairdryer to spin and light an LED. Record what makes it spin fastest and suggest improvements.

Explain the advantages of using renewable energy.

Facilitation Tip

When building the wind turbine, have students test blade angles against a fan’s airflow to connect design choices to real-world performance.

What to look for

Pose the question: 'Imagine our town could only use one type of renewable energy. Which would be best for us and why?' Encourage students to consider local geography and resources, justifying their choice with at least two benefits.

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Activity 03

• Inquiry Circle
• 50 min · Small Groups

Design Challenge: Solar Heater

Groups design a box heater with foil, plastic wrap, and black paper. Place ice cubes inside and monitor melt time in sunlight. Compare designs and explain why some work better.

Design a model of a device that uses renewable energy.

Facilitation Tip

For the Solar Heater challenge, remind students to record temperature changes every two minutes to build a clear data set for comparison.

What to look for

On a small card, ask students to draw a simple picture of a device that uses renewable energy and write one sentence explaining how it works and one benefit of using that energy source.

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Activity 04

• Inquiry Circle
• 35 min · Pairs

Pros Debate: Renewable Advantages

Assign pairs a renewable source. Research one advantage using provided fact sheets, prepare a 1-minute pitch, then debate against non-renewable. Class votes on most convincing argument.

Differentiate between renewable and non-renewable energy sources.

Facilitation Tip

In the Pros Debate, assign roles (e.g., economist, environmentalist) to push students to defend claims with specific evidence.

What to look for

Present students with a list of energy sources (e.g., coal, sun, wind, oil, river water). Ask them to sort these into two columns: 'Renewable' and 'Non-renewable' and briefly explain their reasoning for one item in each column.

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

A few notes on teaching this unit

Teachers should emphasize that renewable energy is not a single solution but a toolkit that must fit local resources and needs. Avoid framing renewables as flawless; instead, use models and data to show variability and the need for complementary systems. Research shows students grasp abstract systems better when they manipulate one component at a time, so scaffold activities from simple to complex.

By the end of these activities, students will confidently classify energy sources and explain why renewable options matter, using evidence from their models and discussions. They will also recognize that renewable energy depends on context and requires thoughtful design, not just technology. Look for clear explanations supported by data from their prototypes and debates.

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Watch Out for These Misconceptions

• During the Card Sort activity, watch for students who assume renewables work perfectly without considering weather or location constraints.

  Use the sorted categories to prompt a discussion about why some sources (e.g., solar) might not work in all places or at all times, then refer to the Wind Turbine model’s need for consistent wind as a real-world example.

• During the Solar Heater design challenge, watch for students who believe solar panels only work in direct sunlight.

  Have students cover part of their panel with paper to simulate cloud cover, then measure the temperature drop and graph the results to show that partial power is still generated.

• During the Pros Debate, watch for students who dismiss renewables due to initial costs without considering long-term savings.

  Refer to the cost data from the Solar Heater prototypes and ask students to calculate total costs over five years, including maintenance and energy savings, to highlight long-term benefits.

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Methods used in this brief

• Inquiry Circle