Explain that factor pairs can be written in any order
I can explain that factor pairs can be written in any order.
Explain that factor pairs can be written in any order
I can explain that factor pairs can be written in any order.
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Lesson details
Key learning points
- 5 groups of 2 can be said as 2, five times so 5 x 2 = 2 x 5
- Factor pairs can be written in any order.
- You can say that multiplication is commutative.
Keywords
Commutative - Multiplication is commutative. This means the order of the factors can be changed without changing the calculation or product.
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 confuse identifying the number of groups and group size.
Use sentence stems to support children's thinking and model writing the equation, e.g. for 2 groups of 5 we can say 2 × 5 For 5, two times we can say 5 × 2
To help you plan your year 2 maths lesson on: Explain that factor pairs can be written in any order, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Explain that factor pairs can be written in any order, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Explore more key stage 1 maths lessons from the Representing counting in 2s, 5s and 10s as the 2, 5 and 10 times tables unit, dive into the full primary maths curriculum, or learn more about lesson planning.
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Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Look at the number sequence. To find the previous multiple of 2 you must ________ 2
___, 18, 20
Q2.To find the next multiple of 2 in the count you must ___ 2
20, 22, ___
Q3.Laura is counting back in 2s. What is the previous multiple of 2? 14, 12,
Q4.What is the missing multiple of 2? 18, , 22
Q5.Aisha counts eyes. She knows that 9 children will have 18 eyes altogether. How many eyes will there be altogether if there are 10 children? eyes
Q6.Match the multiplication expressions to the mixed operations so they are equal.
5 groups of 2 + 2
8 groups of 2 − 2
7 groups of 2 + 2
10 groups of 2 − 2
Assessment exit quiz
6 Questions
Q1.Multiplication is __________ because we can swap the factors and still have the same product.
Q2.6 groups of 2 is the same as saying…
Q3.2, 3 times is the same as saying…
Q4.Complete: 4 × 2 = 8 so × 4 = 8
Q5.Complete: 2 × 6 = 12 so × 2 = 12
Q6.Look at the image. Select the correct multiplication equation.
