The Linear Economy and Why It Cannot Continue

  Most products still move through a largely linear system: materials are extracted, products are made, used and eventually discarded. That model can lose useful materials, energy and economic value at every stage. You will trace one everyday product through the system, identify where value is lost and show where circular redesign could make the […]

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The Linear Economy and Why It Cannot Continue

Your Mission
Take one everyday product apart as a system and find where the linear economy throws value away.
You will map material flows, identify hidden forms of waste, verify one part of the journey and locate the strongest opportunity for circular intervention.
The Shape of This Challenge
Discover
✏️ ️ Notice & question
Explore
️ Investigate & test
Create
✏️ Make & communicate
Reflect
️ Think & apply

Discover

Start with the whole product journey rather than only the bin at the end.
Step 1

Follow One Product From Mine to Bin

✏️ Paper first · 8–10 mins
We are learning to see a product as a flow of materials, energy and decisions rather than a single object.

The linear economy is often described as take → make → use → waste. Mapping one ordinary product makes that system visible.

Your Task
  1. Choose one everyday product such as a phone, drinks bottle, trainer or takeaway cup.
  2. Draw the stages raw materials → manufacturing → transport → use → disposal.
  3. Add at least one material, energy input or waste output to each stage.
  4. Circle the stage you know least about.
I can map the main material journey of an everyday product.
→ This creates the baseline system you will investigate and redesign.
Systems ThinkingResearchCritical Thinking
Step 2

Where Does Value Leak Out?

️ Waste hunt · 8–10 mins
We are learning to identify waste as lost material, energy, money or product value.

Waste is not only what appears in a bin. Overproduction, short product life, unused capacity and hard-to-recover materials can all represent value leaving the system.

Your Task
  1. Return to your product map.
  2. Mark at least five points where value may be lost.
  3. Label each as material, energy, money, time or product life.
  4. Choose the loss you think is most preventable.
I can identify several kinds of waste across a product system.
→ This gives your final map a clear problem focus.
Critical ThinkingProblem SolvingSystems Thinking

Explore

Use evidence to test the map and compare several ways to keep value in the system.
Step 3

Check the Product Journey With Evidence

Choose your route · 12–15 mins
We are learning to replace assumptions about a product journey with credible evidence.

Product systems are global and complex, so focus on one important part rather than trying to prove everything.

Your Task
  1. Choose one uncertain stage from your map.
  2. Complete one research route.
  3. Record at least two useful facts and the source.
  4. Update your map where the evidence changes your assumptions.
⚡ Quick Track

Use one credible source to investigate materials, production, transport or end-of-life. Add two verified facts to the map.

Dig Deeper

Compare two credible sources or trace one material through several stages. Identify one uncertainty or disagreement as well as the evidence.

I can use evidence to improve a systems map rather than treating first guesses as facts.
→ This provides the evidence layer for your final linear-economy diagnosis.
ResearchInformation EvaluationCritical Thinking
Step 4

What Would Have to Change?

️ Intervention cards · 10–12 mins
We are learning to identify where redesign could prevent waste before it happens.

Recycling is one possible intervention, but circular thinking also asks whether products can last longer, be repaired, shared, reused or designed with safer recoverable materials.

Your Task
  1. Create five intervention cards: reduce, reuse, repair, remanufacture, recycle.
  2. Place each card at the stage where it could have most impact.
  3. Choose the strongest intervention.
  4. Explain what business, design or behaviour change it would require.
I can identify interventions that prevent or retain value rather than only managing waste at the end.
→ This creates the transition point from linear to circular thinking.
Problem SolvingCreativitySystems Thinking

Create & Share

Create a clear diagnosis showing why the linear model needs redesign.
Step 5

Create a Linear Economy Diagnosis

✏️ Analyse · Create · 25–35 mins
We are learning to communicate where value is lost in a product system and where circular intervention could begin.

Your final piece should make the system visible and explain the biggest opportunity for change.

Your Task
  1. Show the full product journey.
  2. Identify at least five waste/value-loss points.
  3. Include at least two verified facts.
  4. Recommend one priority circular intervention and explain why it comes before the others.
  5. Choose one output below.
Linear-to-Circular Systems Map
1 page · diagram + 150–200 words
⏱ 25–30 mins

Map the current product journey, value losses and your priority intervention.

Why the Linear Model Breaks
4 slides · maximum 30 words per slide
⏱ 30–35 mins

Explain the product system, waste points, evidence and first circular change.

From Take-Make-Waste to Better Design
90 seconds final runtime
⏱ 30–35 mins

Use one product to explain why the linear system loses value and where redesign should start.

I can create an evidence-based systems diagnosis with a clear intervention point.
→ This is your finished mission output.
Critical ThinkingResearchCommunication
Step 6

Reflect, Apply, Look Forward

️ Think or discuss · 5–8 mins
We are learning to reflect on what systems thinking reveals that recycling-only thinking can miss.

The next challenge follows materials after disposal and asks what circularity really requires.

Your Task
  1. Answer the three prompts.
  2. Name one form of waste you had not considered before.
  3. Write one question about what actually happens to a material after disposal.
Reflect

Which stage of the product journey surprised you most?

Apply

Where could systems mapping improve a decision in your school, workplace or home?

Look Forward

What product would you redesign first if keeping materials in use became a business requirement?

I can explain why preventing waste can be more powerful than dealing with it at the end.
→ You are ready to investigate how materials can stay useful for longer.
ReflectionCritical ThinkingSystems Thinking
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TOOLKIT

Choose Your Tools

Use the tools available to you. Strong systems thinking and evidence matter more than the software.

Map

Use paper, Slides, Miro, Canva or another diagram tool to map material flows from extraction to disposal.

Research

Use credible sources on material use, waste and product life cycles. Record where important figures came from.

Create

Use a systems map, briefing, slide deck or short explainer.

Educator / Parent Notes

Age, Stage and Prior Learning: Designed for S4–S6 and adults. No specialist prior knowledge is required, but learners should be ready to research product supply chains critically.
Before You Start: Choose a few familiar product examples in advance. Encourage learners to narrow the research to one material or stage rather than trying to map an entire global supply chain perfectly.
How to Open This: Ask: “When we throw something away, what value are we actually throwing away with it?” Use answers to widen waste beyond rubbish.
Scheduling: Steps 1–4 need around 40–50 minutes. Step 5 needs 25–35 minutes. A natural pause comes after Step 3 once the evidence layer has been added.
If a Pupil Gets Stuck: Provide a five-stage product-journey template and a worked example such as a plastic bottle. Let the learner investigate one stage deeply.
For Fast Finishers: Ask learners to compare two interventions and estimate which retains the most product/material value for longest.
Marking Guidance: Look for connections between design, business model, consumer behaviour and end-of-life. Strong work explains relationships and intervention priorities rather than producing a labelled diagram only.

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