Explain what each factor represents in a multiplication story
Lesson details
Learning outcome
I can explain what each factor represents in a multiplication story.
Key learning points
- In a multiplication, one factor represents the group size.
- In a multiplication, one factor represents 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.
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.
Teacher tip
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.
Licence
Lesson video
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Prior knowledge starter quiz
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.
Q2.Match the expressions to the correct product.
10
8
20
20
Q3.Look at the tally chart. How many snails did Laura see?
Q4.Laura sees 60 worms, how would you record this on this pictogram?
Q5.Laura sees 80 worms, how would she record this in the pictogram? Laura would need to draw circles.
Q6.Aisha has recorded the amount of minibeasts she saw in her back garden in this pictogram. Aisha saw worms.
Assessment exit quiz
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 __________.
Q2.Complete the equation so that it represents the 10 pence and 1 pence coins. 1 × 10 p = × 1 p.
Q3.How many fingers are there in each group?
Select the expression which matches the images.
Q4.Look at the 5 pence and 1 pence coins and complete the expression. × 5 p = 5 × ___ p.
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.
Q6.If one packet of sweets costs 5 p, how much do 7 packets of sweets cost? p.
To help you plan your 2 maths lesson on: Explain what each factor represents in a multiplication story, 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, 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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