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Year 2

Represent equal groups as multiplication

I can represent equal groups as multiplication.

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New
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Year 2

Represent equal groups as multiplication

I can represent equal groups as multiplication.

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Share activities with pupils
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Lesson details

Key learning points

  1. Multiplication can be used to represent equal groups.
  2. The x symbol represents times.
  3. One number in the multiplication represents the number of groups and the other the number in each group.

Keywords

  • Groups / grouping - A set of things with an identity.

  • Multiplication - The basic idea of multiplication is repeated addition, adding a number to itself multiple times. The result of a multiplication is a product.

Common misconception

Children are not able to explain the multiplication expression.

Children are encouraged to identify exactly how the equation relates to the image. For example 3 groups of 2 shoes: 3 x 2 - with the questions ‘What does the 3 represent?’ ‘What does the 2 represent?’ ‘What does the 6 represent?’

Only when the expression is fully understood, is it introduced into an equation, with the equals sign and the product. It is a further description of the image. Take time in this lesson to ensure pupils can explain an expression in a range of contexts.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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Starter quiz

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6 Questions

Q1.
Look at the image which shows 2 groups of 8 pieces of fruit. Which set of expressions complete the sentence? That is the same as ___ × ___ or ___ + ___
An image in a quiz
4 + 4 + 4 or 3 × 4
Correct answer: 4 + 4 + 4 + 4 and 4 × 4
Correct answer: 8 + 8 and 2 × 8
3 + 3 + 3 and 5 × 3
Q2.
Which multiplication expression can describe the image showing slices of cake?
An image in a quiz
Correct answer: 2 × 4
Correct answer: 4 × 2
5 × 8
3 × 5
Q3.
Look at the image which shows 4 groups of 5 pencils. Which set of expressions complete the sentence? That is the same as ___ × ___ or ___ + ___
An image in a quiz
3 × 5 and 5 + 5 + 5
Correct answer: 4 × 5 and 5 + 5 + 5 + 5
5 × 5 and 5 + 5 + 5 + 5 + 5
5 × 6 and 5 + 5 + 5 + 5 + 5 + 5
Q4.
There are 5 equal groups of 6 lollipops. Select the correct multiplication expression which represents this story.
5 × 3
5 × 4
5 × 5
Correct answer: 5 × 6
Q5.
Match the multiplication expression and addition expression or description.
Correct Answer:3 × 3,3 groups of 3

3 groups of 3

Correct Answer:4 × 3,3 + 3 + 3 + 3

3 + 3 + 3 + 3

Correct Answer:5 × 3,5 groups of 3

5 groups of 3

Correct Answer:6 × 3,3 + 3 + 3 + 3 + 3 + 3

3 + 3 + 3 + 3 + 3 + 3

Q6.
Look at the array and select the multiplication expressions that could be shown by the number of counters in the array.
An image in a quiz
Correct answer: 2 × 12
Correct answer: 12 × 2
3 × 4
4 × 5
Correct answer: 4 × 6

Exit quiz

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6 Questions

Q1.
What multiplication expression matches this grouping of counters?
An image in a quiz
4 + 4 + 4
Correct answer: 3 × 4
4 × 4
Q2.
Here is a bar model. What multiplication expression does it represent?
An image in a quiz
Correct answer: 4 × 5
4 × 4
5 × 5
5 × 6
Q3.
Jacob has drawn some dots. Which of these representations does it match?
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
3 + 3 + 3
Correct answer: There are 4 groups of 3
Q4.
Select the correct multiplication expression that matches the image.
An image in a quiz
6 × 6
4 × 6
Correct answer: 6 × 5
6 × 4
Q5.
Look at the image which shows 2 groups of 6 How would you change 2 × 6 to show 1 × 6?
An image in a quiz
Correct answer: Remove 6 bundles of sweets
Add 6 bundles of sweets
Remove 2 bundles of 6
Add 2 bundles of 6
Q6.
Look at the image which shows 2 groups of 6 How would you change 2 × 6 to show 2 × 5?
An image in a quiz
Remove 6 bundles of sweets.
Add 6 bundles of sweets.
Correct answer: Remove 2 bundles of sweets.
Add 2 bundles of 6 sweets.