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.
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.
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Lesson details
Key learning points
- When there are two factors and one is equal to 1 then the product is equal to the other factor.
- 1 can represent the group size or the number of groups.
- 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.
Product - A product is the result of two or more numbers multiplied together.
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.
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 (2025), 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.
Complete: 4 × 2 is equal to
Q2.
Select the correct number to complete the equation which represents the 10 pence and 5 pence coins. 2 × 10 = 4 × ___ p.
10
2
3
Q3.
Look at the coins and complete with the same value. × 2 p = 2 × ___ p.
Q4.
Which expression can be used to describe both sets of fingers?
1 × 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.
Q6.
If one packet of sweets costs 10 p, how much does 8 packets of sweets cost? p.
Exit quiz
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6 Questions
Q1.
Look at the image. It shows groups of 1
Q2.
10 times 1 can represent 10 groups of
Q3.
5 times 1 is equal to group of 5
Q4.
Which grouping of coins shows 1 group of 10?
one 1 pence coin
two 5 pence coins
four 10 pence coins
Q5.
Match the expression to the correct description.
1 group of 2
5 groups of 3
1 group of 10
7 groups of 5
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.
Additional material
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