Year 2 - Maths
Explain what each factor represents in a multiplication story
Representing counting in 5s as the 5 times table and link to the 10 times tables
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will represent the 5-times table in different ways. They will explain the relationship between adjacent multiples of 5 and how 5- and 10-times tables are related. 
Lesson Summary
You will learn to explain what each factor represents in a multiplication story.
Key Notes
- 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.
Vocabulary To Learn
- 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 Mistakes To Avoid
- Pupils may find it difficult to identify the factors from the word problems.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
In a multiplication, one factor represents the group size. In a multiplication, one factor represents the number of groups.
2. Use this key word in a maths sentence and explain it clearly. 'Factor'
A factor is a number which exactly divides another whole number. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils may find it difficult to identify the factors from the word problems. Correction: 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.
More Lessons In This Unit
- Explain how a factor of zero or one affects the product Study Guide
- Explain how a multiplication equation with 2 as a factor is related to doubling Study Guide
- Explain how groups of five and ten are related Study Guide
- Explain the relationship between multiples of five and ten Study Guide
- Explain what each factor represents in a multiplication story when one of the factors is one Study Guide
- Represent multiplication equations in different ways Study Guide
- Use knowledge of the 2, 5 and 10 times tables to solve problems Study Guide
- Use knowledge of the 2, 5 and 10 times tables to solve problems in a range of contexts Study Guide
- Use knowledge of the relationships between the 5 and 10 times tables to solve problems Study Guide
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