Scarcity and Choice

Overview

Lesson 2 of 10 in Economic Choices and Change. Students examine how scarcity forces individuals, businesses, and governments to make choices. Through short scenarios, they identify trade-offs and opportunity costs, then add a decision-making organizer to their economic portfolios.

Learning intentions

Students will:

• Explain why scarcity exists in everyday economic decisions.
• Distinguish between a trade-off and an opportunity cost.
• Apply economic thinking to realistic personal, business, and government scenarios.
• Use a decision-making organizer to justify a choice.

Success criteria

• I can explain scarcity using a relevant example.
• I can identify what is given up when a choice is made.
• I can state the opportunity cost of a decision clearly.
• I can use evidence from a scenario to explain my choice.

Curriculum links

• Understand how economic systems respond to scarcity and the competing needs and wants of individuals and groups.
• Analyse how choices about the allocation of limited resources affect people, communities, and economies.
• Evaluate consequences of economic decisions, including intended and unintended effects.
• Develop informed, reasoned positions using evidence and communicate them clearly.

Lesson structure (30 minutes)

1. 0–4 minutes – Hook: “You can only choose one” Open with the scarcity hook slide. Present this scenario: “Your community receives $10,000, but it can fund only one project: a youth recreation space, a road improvement, or a community garden.” Students silently choose one and write what they would give up. Invite two or three quick responses.

2. 4–9 minutes – Teach the key ideas Use the key concepts slides to introduce:

• Scarcity: resources are limited, while wants and needs can exceed what is available.
• Choice: selecting one option from alternatives.
• Trade-off: the options or benefits given up when a choice is made.
• Opportunity cost: the next-best alternative that is given up. Emphasise that opportunity cost is not every option rejected; it is the most valuable next-best option.

3. 9–13 minutes – Model one scenario Display the worked example in the modelling slide: “Jordan has two hours after school and can study for a test or work a paid shift.” Model the thinking aloud: the choice is studying; the trade-off includes the work shift and wages; the opportunity cost is the wages Jordan could have earned from the next-best option. Ask students how the answer would change if Jordan urgently needed money.

4. 13–22 minutes – Scenario investigation Distribute the scarcity and opportunity cost organizer. Students work in pairs to complete three scenarios: a student choosing how to spend limited money, a business deciding how to use limited workers or materials, and a municipal council allocating a restricted budget. For each, students identify the scarce resource, decision, trade-off, opportunity cost, and one possible consequence. Circulate and question pairs: “What is the next-best alternative?” and “Who benefits or loses from this decision?” Use the scenario instructions and discussion prompts to keep the task visible.

5. 22–26 minutes – Compare decisions Ask pairs to compare one scenario with another pair. Partners must identify one similarity and one difference in their opportunity costs. Invite two pairs to share contrasting answers, reinforcing that opportunity cost can differ depending on a person’s priorities, information, and circumstances.

6. 26–30 minutes – Portfolio entry and exit response Students complete the final section of the portfolio decision-making organizer and place it in their economic portfolios. They respond to the prompt on the plenary slide: “Why can the same choice have different opportunity costs for different people?” Collect the worksheet or photograph the portfolio entry for assessment.

Resources

• the scarcity and choice slide deck
• the scarcity and opportunity cost organizer
• Whiteboard or projector
• Pens or pencils
• Students’ economic portfolios
• Timer
• Optional highlighters for identifying scarce resources and opportunity costs

Assessment

• Listen to partner explanations during the scenario investigation, checking whether students distinguish the next-best alternative from all rejected options.
• Review worksheet responses for accurate identification of scarcity, choice, trade-off, opportunity cost, and consequences.
• Use the final response to identify students who can explain that opportunity cost depends on context and priorities.

Differentiation

• Provide a word bank and sentence frames: “The scarce resource is…”, “The choice is…”, and “The opportunity cost is…”.
• Read scenarios aloud and highlight the limited resource and available alternatives for students requiring literacy support.
• Pair students strategically and allow oral responses before written completion; provide extra processing time where needed.
• Extend confident students by asking them to identify an unintended consequence or explain how a different stakeholder might rank the alternatives.