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Year 2

Explain what each factor represents in a multiplication story

I can explain what each factor represents in a multiplication story.

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New
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Year 2

Explain what each factor represents in a multiplication story

I can explain what each factor represents in a multiplication story.

Download all resources
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Share activities with pupils
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Lesson details

Key learning points

  1. In a multiplication, one factor represents the group size.
  2. In a multiplication, one factor represents the number of groups.
  3. Identify the group size and the number of groups in the multiplication story.

Keywords

  • Factor - A factor is a number which exactly divides another whole number.

  • Commutative - Multiplication is commutative. This means the order of the factors can be changed without changing the calculation or product.

Common misconception

Pupils may find it difficult to identify the factors from the word problems.

Model clearly how to identify key phrases and words which will identify the operation and equation required for word problems. Pupils may benefit by highlighting which number shows the number of group size and which shows the number of groups.

A range of contexts are used in this lesson to reflect the range of experiences pupils may have. Consider whether you want to adapt contexts or introduce additional contexts to meet the experience of your pupils.
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.
Which word completes the sentence? The order of the factors can be changed and the __________ remains the same. This is known as commutativity.
An image in a quiz
Correct answer: product
factors
fractions
Q2.
Match the expressions to the correct product.
Correct Answer:2 × 5,10

10

Correct Answer:4 × 2,8

8

Correct Answer:2 × 10,20

20

Correct Answer:5 × 4,20

20

Q3.
Look at the tally chart. How many snails did Laura see?
An image in a quiz
Correct Answer: 25
Q4.
Laura sees 60 worms, how would you record this on this pictogram?
An image in a quiz
Draw 60 circles.
Draw 6 circles.
Correct answer: Draw 12 circles.
Draw 10 circles.
Q5.
Laura sees 80 worms, how would she record this in the pictogram? Laura would need to draw circles.
An image in a quiz
Correct Answer: 8
Q6.
Aisha has recorded the amount of minibeasts she saw in her back garden in this pictogram. Aisha saw worms.
An image in a quiz
Correct Answer: 65

Exit quiz

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6 Questions

Q1.
Which word completes the sentence? The order of the factors can be changed and the product remains the same. This is known as __________.
An image in a quiz
computer
communication
Correct answer: commutativity
Q2.
Complete the equation so that it represents the 10 pence and 1 pence coins. 1 × 10 p = × 1 p.
An image in a quiz
Correct Answer: 10, ten
Q3.
How many fingers are there in each group? Select the expression which matches the images.
An image in a quiz
3 × 5
4 × 4
Correct answer: 4 × 5
6 × 6
Q4.
Look at the 5 pence and 1 pence coins and complete the expression. × 5 p = 5 × ___ p.
An image in a quiz
Correct Answer: 1, one
Q5.
Complete the multiplication equation needed to solve this problem. If one packet of sweets costs 10 p, how much do 10 packets of sweets cost? p × 10 packets = 100 p.
An image in a quiz
Correct Answer: 10, ten
Q6.
If one packet of sweets costs 5 p, how much do 7 packets of sweets cost? p.
An image in a quiz
Correct Answer: 35, 35 p