Lesson

Multiplication as equal groups

Primary EducationGrade 3MathematicsCV-PRI-G03-MATH-OPS-U02-L0145–60 min

You will learn

  • Say that multiplication means equal groups.
  • Write repeated addition as multiplication.
  • Find the total of equal groups.
  • Write and read a multiplication sentence.

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

The lesson in 60 seconds

  1. Multiplication means equal groups.
  2. Repeated addition can be written as multiplication.
  3. The product is the total.
  4. Read 4 × 6 as 4 groups of 6.

Words to know

multiply
Find the total of equal groups.
product
The answer to a multiplication.
factor
A number that is multiplied.
repeated addition
Adding the same number again and again.

1. Discover: bags of oranges

A seller packs 6 oranges in each bag and has 4 bags. How many oranges is that? Can you find it without counting one by one?

2. Understand: equal groups

Equal groups have the same number in each group. 4 bags with 6 oranges in each is 4 groups of 6.

Repeated addition: 6 + 6 + 6 + 6 = 24. We write it shorter as 4 × 6 = 24. The numbers 4 and 6 are factors and 24 is the product.

5 bags of 8 is 5 × 8 = 40. 6 + 6 + 6 = 18 is 3 × 6.

Idea 1: Equal groups

4 groups of 6 is 6 + 6 + 6 + 6 = 24. We write 4 × 6 = 24.

Idea 2: Repeated addition

7 + 7 + 7 is 3 groups of 7. We write 3 × 7 = 21.

Idea 3: Fast facts

5 × 8 = 40 and 9 × 2 = 18. The answer is the product.

Why multiply? It is faster than adding the same number many times.

Remember: Multiplication is a quick way to add equal groups. 4 × 6 means 4 groups of 6.

3. Worked examples

Example 1 (I show you): Groups

4 × 6 = ?

  1. 6 + 6 + 6 + 6.

Answer: 24

Example 2 (We do it together): Write

Write 7 + 7 + 7 as multiplication.

  1. 3 groups of 7.

Answer: 3 × 7 = 21

Example 3 (You try): Product

5 × 8 = ?

Show the steps and answer
  1. 5 groups of 8.

Answer: 40

Did you know?

The numbers we multiply are called factors. The answer is the product.

Why this matters

Equal groups appear in shopping, sharing and building.

4. Explore: make groups

You need 24 counters.

  1. Make 4 groups of 6.
  2. Write 6 + 6 + 6 + 6.
  3. Write the multiplication 4 × 6.
  4. Make 5 groups of 8 and write both ways.
Think about it: what did you notice?

4 × 6 = 24; 5 × 8 = 40.

5. Practise

Say it in a sentence

Use these starters when you talk about the lesson. Say them out loud.

  • There are ___ groups of ___.
  • The repeated addition is ___.
  • The multiplication is ___ × ___.
  • The product is ___.

Guided practice

Question 1. 6 + 6 + 6 + 6?

24.

Question 2. Write 6 + 6 + 6 as multiplication.

3 × 6.

Question 3. 5 × 8?

40.

Independent practice

Level 1: Start

  1. 4 × 6
  2. 5 × 8
  3. Write 7 + 7 + 7 as a multiplication.
  4. 7 × 3
  5. 9 × 2

Level 2: Grow

  1. 3 × 5
  2. 6 groups of 2
  3. 4 + 4 + 4 as multiplication

Level 3: Stretch

  1. 8 × 4
  2. 9 + 9 + 9 + 9 + 9 as multiplication and its product
  3. Ali writes 5 + 5 + 5 as 5 × 5. What is wrong?

Answers are in the answer key below. Try first, then check.

6. Apply: everyday mathematics

A trader has 8 baskets with 5 mangoes each. How many mangoes?

Show a sample answer

40 mangoes.

Another one. There are 6 plates with 4 mangoes on each. Write the multiplication and the total.

Show a sample answer

6 × 4 = 24

7. Common mistakes

Mistake: Reading 4 × 6 as 4 + 6.
Fix: 4 × 6 means 4 groups of 6.
Another mistake: Mixing up the number of groups and the size of each group.
Fix: 4 × 6 means 4 groups of 6.
Another mistake: Adding instead of multiplying.
Fix: Use repeated addition only to understand it.

8. Lesson summary and revision card

I can…

  • I know multiplication is equal groups.
  • I can write repeated addition as multiplication.
  • I can find the product.
  • I can read multiplication sentences.

9. Check and master

Answer all 14 questions. You will see feedback after each one.

1. 6 + 6 + 6 + 6 =

2. 6 + 6 + 6 written as multiplication:

3. 5 bags of 8 =

4. 7 × 3 =

5. 9 × 2 =

6. 4 + 4 + 4 + 4 + 4 =

7. 8 + 8 + 8 written as multiplication is…

8. 6 bags with 3 oranges each hold…

9. 5 × 5 =

10. 3 × 9 =

11. In 4 × 7 = 28, the product is…

12. 10 × 3 =

Challenge 1. 8 baskets with 5 mangoes each hold…

Challenge 2. 6 boxes have 4 pens each, and there are 2 loose pens. How many pens in all?

Your result appears here after you answer every question.

10. Key takeaways

  • Equal groups.
  • Repeated addition.
  • × means groups of.

11. Next lesson

Next lesson: Multiplication arrays. 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.

  1. Write 7 + 7 + 7 as a multiplication. [2 marks]
  2. 4 × 6 = ? [2 marks]
  3. 5 bags with 8 mangoes in each. How many? [2 marks]
  4. What is the answer to a multiplication called? [1 mark]
  5. Ali writes 5 + 5 + 5 as 5 × 5. Is he right? Explain. [3 marks]

Total: 10 marks.

Marking guide and model answers
  1. 3 × 7 [1] = 21 [1]
  2. 6 + 6 + 6 + 6 [1] = 24 [1]
  3. 5 × 8 [1] = 40 [1]
  4. The product [1]
  5. No [1]. 3 groups of 5 [1]. 3 × 5 = 15 [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

  1. 4 × 6
  2. 5 × 8
  3. 7 + 7 + 7 as multiplication
  4. 7 × 3
  5. 9 × 2
  6. 6 + 6 + 6 + 6 =
  7. 6 + 6 + 6 as multiplication
  8. 5 bags of 8 =
  9. 7 × 3 =
  10. 9 × 2 =

Homework

Make equal groups of objects at home and write the multiplication.

Answer key and marking scheme

Question Expected response Marks
4 × 6 24 2
5 × 8 40 2
7 + 7 + 7 as multiplication 3 × 7 2
7 × 3 21 2
9 × 2 18 2
Total 10

Practice answers: Worksheet: 1 24; 2 40; 3 3 × 7; 4 21; 5 18.

Quiz answers: 1 A, 2 B, 3 C, 4 A, 5 B, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 C, Challenge 2 C.

Extra worksheet answers (items 6 onward): 6 24; 7 3 × 6; 8 40; 9 21; 10 18.

Independent practice answers. Level 1: 1 24; 2 40; 3 3 × 7 = 21; 4 21; 5 18. Level 2: 1 15; 2 12; 3 3 × 4. Level 3: 1 32; 2 5 × 9 = 45; 3 There are 3 groups of 5, so it is 3 × 5 = 15..

Mastery and remediation

Objective Bronze (Developing) Silver (Proficient) Gold (Advanced)
O1 Say that multiplication means equal groups 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 Write repeated addition as multiplication 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 Find the total of equal groups 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 Write and read a multiplication sentence 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

  1. Find the misconception: Reading 4 × 6 as 4 + 6. 4 × 6 means 4 groups of 6.
  2. Explain another way: use real objects first, then pictures.
  3. Show a simpler example: Use counters in cups, same number in each cup.
  4. Guided practice: work through one example together and let the learner try the next one.
  5. Reassess: use the quiz again or the worksheet.
  6. Move on when the learner shows Silver-level evidence independently.

For parents and guardians

In this lesson your child learns that multiplication means equal groups. You do not need to be good at mathematics to help.

  • Use sweets or counters to make equal groups.
  • Ask: how many groups? how many in each?
  • Write the repeated addition and the multiplication.
  • 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: say that multiplication means equal groups; write repeated addition as multiplication; find the total of equal groups; write and read a multiplication sentence.

Prerequisite knowledge. Grade 2 multiplication.

Materials. Counters (stones, seeds or bottle tops), paper, pencils, board or chalkboard. Low-resource options: use stones, seeds, sticks, bottle tops or drawings in the sand or on the board instead of printed materials.

Preparation. Gather the counters and draw the example pictures on the board before the lesson.

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). Start with the Discover situation and let learners suggest ideas before you teach.

Explanation (10 min). Teach the Understand section with real objects first, then pictures, then symbols and words.

Guided activity (10 min). You need 24 counters. Learners follow the Explore steps in pairs.

Independent activity (10 min). Learners complete the independent practice and the worksheet.

Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.

Key questions. How many groups? How many in each group? What is the total?

Teacher explanation notes. Use the concrete, pictorial, abstract order: real objects first, then pictures, then symbols and words. Return to real objects whenever a learner needs support.

10–12. Differentiation, formative assessment, common misconceptions

Support. Use real objects and work with a partner; say each step aloud together. Extension. Ask learners to make up their own example and explain it to a partner.

Formative assessment. Listen to learner explanations, ask “how do you know?”, and check the independent work.

Misconceptions. Reading 4 × 6 as 4 + 6. 4 × 6 means 4 groups of 6.

13–15. Assessment questions, answer keys, marking scheme

Use the quiz and worksheet on this page. The 10-mark exam practice scheme, the 10-mark scheme and all answers are in the answer sections above. Re-check every answer and the marking scheme before publication.

16–19. Remediation, enrichment, homework, teacher reflection

Remediation. Use counters in cups, same number in each cup. Enrichment. Invite learners to find or create three more examples at home or in the classroom and explain them. Homework. See above.

Teacher reflection. After teaching, record: which concepts 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 named in the Courseversity standard: Common Core State Standards for Mathematics, Cambridge Primary and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.

Official standards for this topic area. Common Core State Standards for Mathematics (official site): Grade 3 » Operations & Algebraic Thinking; Grade 3 » Number & Operations in Base Ten. These pages list the standards that cover this topic area; read them alongside the lesson.

Research used to shape this lesson. Common Core 3.OA.A.1 (interpret products); Cambridge Primary Mathematics Stage 3 (multiplication). These sources informed the lesson.

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