Computing · Year 6

Active learning ideas

E-Waste: The Environmental Cost of Tech

Active, hands-on tasks transform abstract data about e-waste into visible actions. Students handle real objects, map real pathways, and design real solutions, so they grasp the environmental cost of technology instead of just hearing about it.

• National Curriculum Attainment Targets
• KS2: Computing - Digital Literacy
• KS2: Computing - Information Technology

• 30–45 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Case Study Analysis
• 30 min · Small Groups

Classroom Audit: E-Waste Inventory

Students list and categorize classroom electronics by age and condition. They research disposal fates using provided fact sheets, then tally potential waste volumes. Groups present findings with photos.

Explain the environmental cost associated with the production and disposal of electronic devices.

Facilitation Tip

During the Classroom Audit, group students by device type so they notice patterns in age, brand, and disposal plans across the class.

What to look for

Provide students with three images: a landfill, a factory producing electronics, and a pile of old phones. Ask them to write one sentence explaining how each image relates to e-waste and its environmental cost.

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

Activity 02

• Case Study Analysis
• 45 min · Pairs

Lifecycle Mapping: Phone Journey

Pairs draw a flowchart of a smartphone's life from mine to dump. Add annotations for impacts at each stage using online videos. Share maps on a class wall display.

Analyze what happens to old tablets and phones after they are thrown away.

Facilitation Tip

When students create Lifecycle Mapping, insist they label each node with a specific environmental cost (e.g., ‘mining one gram of cobalt uses 1,500 litres of water’).

What to look for

Ask students to complete a short true/false quiz with statements like: 'All e-waste is safely recycled in the UK.' or 'Incinerating e-waste always releases harmful gases.' Review answers as a class, clarifying misconceptions.

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

Activity 03

• Case Study Analysis
• 40 min · Whole Class

Future Forecast Debate: E-Waste Scenarios

Divide class into teams to debate best-case and worst-case e-waste futures based on current trends. Use graphs of global data. Vote on most likely outcome with reasons.

Predict the future environmental impact if e-waste continues to grow at its current rate.

Facilitation Tip

In the Future Forecast Debate, assign roles (local council, tech CEO, parent, scientist) so arguments reflect real-world tensions and trade-offs.

What to look for

Pose the question: 'If you were designing a new phone, what three features would you include to reduce its environmental impact?' Facilitate a class discussion where students share their ideas and justify their choices.

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

Activity 04

• Case Study Analysis
• 35 min · Individual

Solution Design: Reduce and Reuse Campaign

Individuals sketch posters promoting device repair or donation. Incorporate stats from prior activities. Display and vote on top ideas for school policy.

Explain the environmental cost associated with the production and disposal of electronic devices.

Facilitation Tip

For the Reduce and Reuse Campaign, provide limited poster space to force concise, high-impact messages that peers can grasp in under thirty seconds.

What to look for

Provide students with three images: a landfill, a factory producing electronics, and a pile of old phones. Ask them to write one sentence explaining how each image relates to e-waste and its environmental cost.

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

A few notes on teaching this unit

Start with objects students already own—phones, chargers, headphones—to anchor the topic in lived experience. Avoid long lectures on recycling percentages; instead, let data emerge naturally from the audit and then be interrogated. Research shows that when students build models and present to peers, misconceptions shrink by up to 40 percent because errors are visible and correctable in real time.

Success looks like students confidently linking mining scars to factory emissions and landfill toxins, using precise vocabulary such as ‘rare earth metals’ and ‘leachate.’ They should critique current habits and propose realistic changes in their campaign posters and debate points.

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Watch Out for These Misconceptions

• During Classroom Audit, watch for students who assume old devices disappear harmlessly once removed from homes.

  Have groups physically tally how many devices are stored ‘just in case’ versus recycled; the totals reveal that ‘disappearing’ is a myth, triggering a class discussion on landfill realities.

• During Lifecycle Mapping, watch for students who believe recycling alone solves e-waste.

  Ask them to annotate their maps with recycling rates from the audit; the low percentages force a shift toward reduction and reuse strategies.

• During Future Forecast Debate, watch for students who claim manufacturing has no environmental cost.

  Require each team to present one quantified environmental cost from their lifecycle maps before arguing policy, ensuring production impacts are central to the debate.

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Methods used in this brief

• Case Study Analysis