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Year 2

Explain what each factor represents in a multiplication story when one of the factors is one

I can explain what each factor represents in a multiplication story when one of the factors is one.

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New
New
Year 2

Explain what each factor represents in a multiplication story when one of the factors is one

I can explain what each factor represents in a multiplication story when one of the factors is one.

Download all resources
Share activities with pupils

Lesson details

Key learning points

  1. When there are two factors and one is equal to 1 then the product is equal to the other factor.
  2. 1 can represent the group size or the number of groups.
  3. Identify the group size and the number of groups in the multiplication story.

Common misconception

Pupils may not recognise that 1 can be a factor, particularly when the context includes 1 group.

Work with children to discuss groups and what they can see, such as 3 groups of 4 Reduce the number of groups to 2 and then 1 group and identify that 1 group can still be used. Then attach this to multiplication and expressions.

Keywords

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

  • Product - A product is the result of two or more numbers multiplied together.

Pupils make connections between ___ groups of 1 and 1 group of ___ to identify a factor of one. Consider how manipulatives can be used to practically show these structures.
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).

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Starter quiz

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6 Questions

Q1.
Complete: 5 × 2 is equal to
An image in a quiz
Correct Answer: 10
Q2.
Select the correct number to complete the equation which represents the 10 pence and 5 pence coins. 2 × 10 = 4 × ___ p.
An image in a quiz
10
2
3
Correct answer: 5
Q3.
Look at the coins and complete with the same value. × 2 p = 2 × ___ p.
An image in a quiz
Correct Answer: 1, one
Q4.
Which expression can be used to describe both sets of fingers?
An image in a quiz
1 × 5
Correct answer: 2 × 5
2 × 2
1 × 10
Q5.
Complete the multiplication equation needed to solve this problem. If one packet of sweets costs 10 p, how many packets cost 60 p? packets × 10 p = 60 p.
An image in a quiz
Correct Answer: 6, six
Q6.
If one packet of sweets costs 10 p, how much does 8 packets of sweets cost? p.
An image in a quiz
Correct Answer: 80

Exit quiz

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6 Questions

Q1.
Look at the image. It shows groups of 1
An image in a quiz
Correct Answer: 5, five
Q2.
10 times 1 can represent 10 groups of
An image in a quiz
Correct Answer: 1, one
Q3.
5 times 1 is equal to group of 5
An image in a quiz
Correct Answer: 1, one
Q4.
Which grouping of coins shows 1 group of 10?
Correct answer: ten 1 pence coins
one 1 pence coin
Correct answer: one 10 pence coin
two 5 pence coins
four 10 pence coins
Q5.
Match the expression to the correct description.
Correct Answer:2 × 1,1 group of 2

1 group of 2

Correct Answer:3 × 5,5 groups of 3

5 groups of 3

Correct Answer:10 × 1,1 group of 10

1 group of 10

Correct Answer:5 × 7,7 groups of 5

7 groups of 5

Correct Answer:7 × 2,2 groups of 7

2 groups of 7

Q6.
Aisha has 2 of the same coin. Laura has one coin. She has the same amount of money as Aisha. If Aisha’s coins are both 10 pence, what is Laura’s coin? p.
Correct Answer: 20

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