You will learn
- Compare prices.
- Find best value.
- Add to compare totals.
- Explain checking.
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
- Prices differ between sellers.
- Best value means good quality for the price.
- We add to find totals and subtract to find differences.
- We check before buying.
Words to know
to look at how things are the same and different
good quality for the price paid
all added together
how much more or less
1. Discover: Two stalls
Mei and Fatmata look for exercise books. At Stall A, three books cost 12. At Stall B, three books cost 9 but the paper is thin. “The difference is 3,” says Mei. “But thin paper tears,” says Fatmata. They look at a third stall: three books for 10 with thick paper. “That is the best value for money,” they agree.
Think: Which stall would you choose?
2. Understand: Compare
Idea 1: Compare
To compare prices, look at two or three sellers for the same goods. Write the prices, find the total when buying more than one, and find the difference between prices by subtracting.
Idea 2: Value
Value for money means good quality for the price paid. A very cheap item that breaks quickly is poor value. A slightly dearer item that lasts is better value. Check size, quality and safety too.
Idea 3: Check first
Checking before buying saves money and avoids waste. Ask politely, never rush, and do not feel pressed to buy. If unsure, ask an adult.
3. Worked examples
Example 1 (I show you): Total
3 books at 4.
- Multiply.
- Add.
- Say.
Answer: 12.
Example 2 (We do it together): Difference
12 and 9.
- Subtract.
- Say.
- Check.
Answer: 3.
Example 3 (You try): Choose
Which is best value?
Show the steps and answer
- Compare.
- Check.
- Choose.
Answer: Thick paper for 10.
Did you know?
Many shops now put the price per kilogram or per litre on labels so shoppers can compare different pack sizes fairly.
Why this matters
Comparing helps us spend wisely and avoid waste.
4. Explore: Price detective
Compare three similar goods using price cards. Add totals, find differences and choose the best value. Explain your choice.
- Read.
- Add and subtract.
- Choose.
- Explain.
Think about it: what did you notice?
What did you notice? The cheapest was not always best.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- To compare is ___.
- Value for money is ___.
- A total is ___.
- A difference is ___.
Guided practice
Question 1. What is compare?
Look at likenesses and differences.
Question 2. What is value for money?
Good quality for the price.
Question 3. What is a total?
All added.
Independent practice
Level 1: Start
- What is compare?
- What is value for money?
- What is a total?
- What is a difference?
- 3 books at 4 each?
Level 2: Grow
- Why compare?
- Why check quality?
- Why not rush?
Level 3: Stretch
- Find totals.
- Find differences.
- Choose best value.
Answers are in the answer key below. Try first, then check.
6. Apply: Social Studies in everyday life
Find the difference between 12 and 9 and say if cheaper is best.
Show a sample answer
3; not always.
Another one. Compare two prices with an adult.
Show a sample answer
Share.
7. Common mistakes
Fix: Quality matters.
Fix: It saves money.
8. Lesson summary and revision card
- I can compare prices.
- I can find best value.
- I can add to compare totals.
- I can explain checking.
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
- Prices differ between sellers.
- Best value means good quality for the price.
- We add to find totals and subtract to find differences.
- We check before buying.
11. Next lesson
Next lesson: Planning simple purchases. 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.
- Find the total of 3 books at 4 each. [2 marks]
- Find the difference between 12 and 9. [2 marks]
- Say what value for money means. [3 marks]
- Say why checking before buying matters. [3 marks]
Total: 10 marks.
Marking guide and model answers
- Method [1]; answer 12 [1]
- Method [1]; answer 3 [1]
- Quality [1]; price [1]; example [1]
- Save money [1]; avoid waste [1]; choose well [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 compare?
- What is value for money?
- What is a total?
- What is a difference?
- 3 books at 4 each?
- Why compare?
- Why check quality?
- Why not rush?
- Find totals.
- Find differences.
Homework
Compare prices of two goods and choose the best value.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What is compare? | Look at likenesses and differences. | 1 |
| 2. What is value for money? | Good quality for the price. | 1 |
| 3. What is a total? | All added. | 1 |
| 4. What is a difference? | How much more or less. | 1 |
| 5. 3 books at 4 each? | 12. | 1 |
| 6. Why compare? | Spend wisely. | 1 |
| 7. Why check quality? | Lasts longer. | 1 |
| 8. Why not rush? | Avoid mistakes. | 1 |
| 9. Find totals. | Totals. | 1 |
| 10. Find differences. | Differences. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 Look at likenesses and differences.; 2 Good quality for the price.; 3 All added.; 4 How much more or less.; 5 12.. Level 2: 1 Spend wisely.; 2 Lasts longer.; 3 Avoid mistakes.. Level 3: 1 Totals.; 2 Differences.; 3 Choose..
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 Compare prices | 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 Find best value | 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 Add to compare totals | 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 Explain checking | 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: “The lowest price is always best.” Quality matters.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Make a comparison 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 compares prices. Please compare two products at home together. You do not need to be an expert to help.
- Compare prices together.
- Talk about quality.
- Avoid rushing.
- 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: compare prices; find best value; add to compare totals; explain checking.
Prerequisite knowledge. Grade 2 ideas: money, currency, buying and selling, prices, budgets and needs before wants.
Materials. Price cards, paper. 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 price cards.
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 two stalls story.
Explanation (10 min). Teach comparing.
Guided activity (10 min). Price detective.
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 we find the best value?
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. “The lowest price is always best.” Quality matters.
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 a comparison 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 2 Unit 7, topic 8; NCSS C3 Framework, economic decision making and exchange; Cambridge Primary Humanities, people and work; IB Primary Years Programme, how we organise ourselves. These sources informed the lesson.