Year 2 - Maths
Explain how a division equation with 2 as a divisor is related to halving
Doubling, halving, quotative and partitive division
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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 double and halve 2-digit numbers. They will explore division as both grouping and sharing and learn to use times table facts to find the quotient for 2x 5x 10x tables.
Lesson Summary
You will learn to explain how a division equation with 2 as a divisor is related to halving.
Key Notes
- Halving is dividing into two equal parts.
- Halving is the same as dividing by 2
- Halving can be used for a division equation where 2 is the divisor.
- We can use known halving facts when the divisor is 2
Vocabulary To Learn
- Divisor: The divisor is what we are dividing by.
- Half/ Halving: One of two equal parts of a whole. / To divide into two equal parts.
Common Mistakes To Avoid
- Children may make errors when halving 2-digit numbers.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Halving is dividing into two equal parts. Halving is the same as dividing by 2.
2. Use this key word in a maths sentence and explain it clearly. 'Divisor'
The divisor is what we are dividing by. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Children may make errors when halving 2-digit numbers. Correction: Recap strategies for halving from previous units prior to the lesson so that the process of halving numbers does not take over the focus of this lesson.
More Lessons In This Unit
- Explain each part of a division equation and know how they can be interchanged Study Guide
- Explain how a dividend of zero affects the quotient Study Guide
- Explain how a divisor of one affects the quotient Study Guide
- Explain how the quotient is affected when the divisor is equal to the dividend Study Guide
- Explain how times table facts can help to find the quotient (10 times table) Study Guide
- Explain how times table facts can help to find the quotient (2 times table) Study Guide
- Explain how times table facts can help to find the quotient (5 times table) Study Guide
- Explain patterns and relationships between the 5 and 10 times tables Study Guide
- Identify the patterns and relationships between the 5 and 10 times tables Study Guide
- Use knowledge of divisibility rules when the divisor is 10 to solve problems Study Guide
- Use knowledge of divisibility rules when the divisor is 2 to solve problems Study Guide
- Use knowledge of divisibility rules when the divisor is 5 to solve problems Study Guide
- Use knowledge of division strategies to solve problems Study Guide
- Use knowledge of the 5 and 10 times tables to solve problems Study Guide
Browse all guides in the Year 2 Maths guide library.