Explain what each factor represents in a multiplication story when one of the factors is one
Lesson details
Learning outcome
I can explain what each factor represents in a multiplication story when one of the factors is one.
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.
Teacher tip
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.
Licence
Lesson video
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Prior knowledge starter quiz
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.
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?
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.
Assessment exit quiz
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?
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.
To help you plan your 2 maths lesson on: Explain what each factor represents in a multiplication story when one of the factors is one, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 2 maths lesson on: Explain what each factor represents in a multiplication story when one of the factors is one, 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.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
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