New
New
Year 1
Double numbers and explain what doubling means
I can double numbers and explain what doubling means.
New
New
Year 1
Double numbers and explain what doubling means
I can double numbers and explain what doubling means.
Lesson details
Key learning points
- When both addends are equal, we are doubling.
- Doubling means adding two equal addends.
- Doubling a whole number always gives an even number.
Keywords
Double / doubling - To become twice as many.
Addends - Any of the numbers that are added together.
Equal - Exactly the same amount or value.
Common misconception
Children may struggle to see that a double is two of the same thing.
Spend time exploring doubles that can be found in the children's immediate environment e.g. using their hands or playing a game of dominoes.
Begin by reviewing counting in even numbers to ten, forwards and backwards. Children should have had lots of practice of this and so should be fluent. As suggested, take time to explore doubles beyond the lesson, setting up opportunities to play games at break and lunch time for example.
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.
What is the missing number in this equation? 5 + = 5
5
1
2
Q2.
What is the missing number from this equation? - 0 = 9
0
90
8
Q3.
Which of these equations has a difference of 0?
{{ }} = 8 − 0
{{ }} = 5 − 0
Q4.
Which representation shows that 0 has been subtracted from this ten frame?
Q5.
Match the equations to their solutions?
0
0
8
8
Q6.
Is Sam's statement True or False?
False
Exit quiz
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6 Questions
Q1.
How many cubes are needed on the other side to make this equal?
Q2.
What doubling equation is being shown on this seesaw?
4 + 4 = 8
1 + 1 = 2
Q3.
What doubling fact is being shown here?
5 + 5 = 10
2 + 2 + 2 + 2 = 8
Q4.
What is the missing part in this part-part-whole model?
Q5.
Jun has 3 sweets. Sam has double the amount. How many sweets does Sam have?
3
4
5
Q6.
Sam swims 4 lengths of the swimming pool. Jun swims 7 lengths. Jun says that he swam double the number of lengths. Is this True or False?
True
Additional material
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