You will learn
- Review scarcity, opportunity cost, factors of production.
- Review demand, supply, trade and specialisation.
- Review public goods and taxes.
- Apply concepts to a data table.
Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.
Student lesson
- Scarcity forces choices.
- Opportunity cost is the next best alternative.
- Prices depend on demand and supply.
- Trade and taxes link people and governments.
Words to know
the problem that resources are limited but wants are unlimited
the value of the next best choice you give up when you decide
how much buyers want and how much sellers offer, which together influence price
focusing on producing the goods or services one does best
1. Discover: The market of Marin
Ms Smith gives a pretend data table from the island of Marin: fish price 4 tokens when supply is high and 8 tokens when supply is low; the town fund can build either a school roof (60 tokens) or a clinic shed (60 tokens). “What is the opportunity cost of choosing the roof?” she asks. “The clinic shed.” “Why does the fish price change?” “When supply falls, the price tends to rise.” “Where does the town fund come from?” “Contributions or taxes.” She reminds pupils to explain using the right words and to show their reasoning.
Think: How might specialising help Marin trade with the mainland?
2. Understand: Economics review
Idea 1: Core ideas
Scarcity means limited resources and unlimited wants, so choices are needed. Opportunity cost is the next best alternative given up. Factors of production are land, labour, capital and enterprise. Production turns resources into goods and services; consumption uses them.
Idea 2: Markets and trade
Prices depend on demand and supply: shortages push prices up and surpluses push them down. Specialisation and trade can increase output and variety. Imports are bought from abroad and exports sold abroad; a trade balance compares them. Interdependence links economies worldwide.
Idea 3: Public finance and decisions
Taxes and other revenue pay for public goods and services such as roads, schools and clinics. Good decisions use criteria and evidence, weigh benefits and opportunity costs, consider fairness and sustainability, and are reviewed. A data-response answer reads the table, states the pattern, explains with concepts and concludes.
3. Worked examples
Example 1 (I show you): Define
Opportunity cost.
- Think.
- Say.
- Check.
Answer: Next best alternative given up.
Example 2 (We do it together): State
What happens to price when supply falls.
- Think.
- Say.
- Check.
Answer: It tends to rise.
Example 3 (You try): Name
A public good.
Show the steps and answer
- Think.
- Say.
- Check.
Answer: Street light.
Did you know?
Economists often use tables and graphs to show how prices, jobs and production change over time.
Why this matters
Reviewing economics helps you make informed choices and prepares you for secondary social studies.
4. Explore: Marin data response
Read a pretend data table of fish prices, a town fund choice and an import-export list. Answer five short questions using key words, then write a six-sentence structured response on how Marin could improve its economy fairly.
- Read.
- Answer.
- Explain.
- Conclude.
Think about it: what did you notice?
What did you notice? Concepts help explain data.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- Scarcity is ___.
- Opportunity cost is ___.
- Specialisation is ___.
- A shortage tends to ___.
Guided practice
Question 1. What is scarcity?
Limited resources.
Question 2. What is opportunity cost?
Next best alternative.
Question 3. What is specialisation?
Focus on best.
Independent practice
Level 1: Start
- What is scarcity?
- What is opportunity cost?
- What is specialisation?
- What happens in a shortage?
- Name a factor.
Level 2: Grow
- Why trade?
- Why taxes?
- Why criteria?
Level 3: Stretch
- Read the table.
- Answer questions.
- Write the response.
Answers are in the answer key below. Try first, then check.
6. Apply: Social Studies in everyday life
Explain opportunity cost using the Marin fund.
Show a sample answer
Choosing the roof gives up the clinic shed.
Another one. Explain opportunity cost to an adult using a simple choice.
Show a sample answer
Share.
7. Common mistakes
Fix: There is still an opportunity cost.
Fix: It lowers them.
8. Lesson summary and revision card
- I can review scarcity, opportunity cost, factors of production.
- I can review demand, supply, trade and specialisation.
- I can review public goods and taxes.
- I can apply concepts to a data table.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- Scarcity forces choices.
- Opportunity cost is the next best alternative.
- Prices depend on demand and supply.
- Trade and taxes link people and governments.
11. Next lesson
Next lesson: Global connections review. Keep going with the next idea in this course.
Exam practice
These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.
- Define scarcity and opportunity cost. [2 marks]
- Name the four factors of production. [3 marks]
- Explain how demand and supply affect price. [3 marks]
- Explain one benefit and one risk of specialisation. [2 marks]
Total: 10 marks.
Marking guide and model answers
- Scarcity [1]; opportunity cost [1]
- Four [3]
- Shortage [1]; surplus [1]; effect [1]
- Benefit [1]; risk [1]
Score guide: 9 to 10 = secure. 6 to 8 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.
Printable worksheet
- What is scarcity?
- What is opportunity cost?
- What is specialisation?
- What happens in a shortage?
- Name a factor.
- Why trade?
- Why taxes?
- Why criteria?
- Read the table.
- Answer questions.
Homework
Draw an economics map.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What is scarcity? | Limited resources. | 1 |
| 2. What is opportunity cost? | Next best alternative. | 1 |
| 3. What is specialisation? | Focus on best. | 1 |
| 4. What happens in a shortage? | Price rises. | 1 |
| 5. Name a factor. | Labour. | 1 |
| 6. Why trade? | Variety. | 1 |
| 7. Why taxes? | Public services. | 1 |
| 8. Why criteria? | Fair choices. | 1 |
| 9. Read the table. | Read. | 1 |
| 10. Answer questions. | Answer. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 Limited resources.; 2 Next best alternative.; 3 Focus on best.; 4 Price rises.; 5 Labour.. Level 2: 1 Variety.; 2 Public services.; 3 Fair choices.. Level 3: 1 Read.; 2 Answer.; 3 Write..
Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.
Mastery and remediation
| Objective | Bronze (Developing) | Silver (Proficient) | Gold (Advanced) |
|---|---|---|---|
| O1 Review scarcity, opportunity cost, factors of production | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O2 Review demand, supply, trade and specialisation | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O3 Review public goods and taxes | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O4 Apply concepts to a data table | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.
If a learner struggles
- Find the misconception: “There is no cost if something is free.” There is still an opportunity cost.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Make an economics chart.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child reviews economics with a pretend data table. Please ask them to explain opportunity cost. You do not need to be an expert to help.
- Ask about opportunity cost.
- Use pretend money.
- Avoid money worries.
- Ask “how do you know?” after each answer, and listen.
- Praise effort, not only right answers. Mistakes are how we learn.
- Ten to fifteen minutes a day is better than one long session.
Teacher package
1–5. Objectives, prerequisites, materials, preparation, duration
Lesson objectives. Learners will: review scarcity, opportunity cost, factors of production; review demand, supply, trade and specialisation; review public goods and taxes; apply concepts to a data table.
Prerequisite knowledge. All Grade 6 Social Studies units: enquiry, geography, history, Africa, government, rights, economics, migration, environment, international cooperation and media.
Materials. Data tables. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.
Preparation. Prepare data tables.
Suggested duration. 45–60 minutes. It can be split into two shorter sessions.
6–9. Teaching procedure, explanation notes, guided and independent activities
Introduction (5 min). Tell the market of Marin story.
Explanation (10 min). Teach economics review.
Guided activity (10 min). Marin data response.
Independent activity (10 min). Discuss.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. How do economic ideas help us understand choices and trade?
Teacher explanation notes. Start with a picture, story, map or local example. Then talk about what was seen, then draw and write. Always ask “how do you know?” and invite more than one view. Treat every family, culture and community with respect, and never ask learners to share private information.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use pictures, maps, real objects and short sentences, and let learners work with a partner. Let learners point, show, act or draw instead of writing. Extension. Ask learners to find a new example from their own community and explain how they know.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. “There is no cost if something is free.” There is still an opportunity cost.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 10-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.
16–19. Remediation, enrichment, homework, teacher reflection
Remediation. Make an economics chart. Enrichment. Find one new example near your home or school, draw or write about it and explain it to someone. Homework. See above.
Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.
Sources and standards
This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: NCSS standards and C3 Framework, Cambridge Primary Humanities and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.
Research used to shape this lesson. Courseversity Social Studies curriculum, Grade 6 Unit 12, topic 4; NCSS C3 Framework, developing questions, applying disciplinary tools, evaluating sources, communicating conclusions and taking informed action; Cambridge Lower Secondary Humanities, enquiry skills; IB Primary Years Programme, sharing the planet and how we express ourselves. These sources informed the lesson.