New
New
Year 2
Use known addition and subtraction facts within 10 to solve problems
I can use known addition and subtraction facts within 10 to solve problems.
New
New
Year 2
Use known addition and subtraction facts within 10 to solve problems
I can use known addition and subtraction facts within 10 to solve problems.
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Lesson details
Key learning points
- Recall addition and subtraction facts within 10 to solve problems.
- Use strategies like near-doubles to solve problems involving numbers within 10
- Use one more, one less or two more, two less to solve problems.
Keywords
Strategy - A plan, a method or a way to solve a problem.
Common misconception
Children may still make errors when selecting the most appropriate strategy to aid their recall e.g. they may see 7 - 2 = and count back in ones rather than seeing that 5 is the odd number before 7
Always talk about the equation to solve, modelling thinking processes e.g. 'I can see... so I know.... The table in the first learning cycle, organising facts by the strategies used to recall them, can be displayed within the learning environment.
A range of strategies are utilised, but at this point, these can be altered to focus on the individual needs of the children you are working with. The aim is to enable all children to get to the point where they can automatically recall addition and subtraction facts within 10
Teacher tip
Licence
This content is © Oak National Academy Limited (2024), licensed on
Open Government Licence version 3.0
except where otherwise stated. See Oak's terms & conditions (Collection 2).Lesson video
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Starter quiz
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6 Questions
Q1.
If double 3 is 6, then 4 + 3 is one ____
less
half
Q2.
Which double fact would help to solve this problem? 5 + 4 = ?
2 + 2
3 + 3
Q3.
Which sentence describes the representations?
Double 2 is 4, add 1 is 5
Double 1 is 2, add 1 is 3
Q4.
Which sentence describes this representation?
Double 4 is 8, subtract 1 is 7
Double 2 is 4, subtract 1 is 3
Q5.
Who is describing number 5?
Q6.
There were 4 sheep and 3 cows in the yard. How many animals were there in total?
9
8
Exit quiz
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6 Questions
Q1.
Which of these equations represents a double?
4 + 5 =
5 + 2 =
6 - 3 =
Q2.
Which of these equations represents a near-double?
5 + 2 =
3 + 3 =
6 - 3 =
Q3.
What would be the best strategy for solving 8 - 2 = ?
One less
A near-double
Q4.
Match the equation with the best strategy for finding the sum or difference.
5 + 4 =
3 + 1 =
6 + 2 =
7 - 2 =
Q5.
Sam thinks that all these equations can be solved using the next odd/even number strategy. Tick those that can to help you discuss whether or not she is correct.
Q6.
Sam had 7 cookies. This is two more than Aisha has. How many does Aisha have?
9
7
3
Additional material
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