New
New
Year 2
Explain how a factor of zero or one affects the product
I can explain how a factor of zero or one affects the product.
New
New
Year 2
Explain how a factor of zero or one affects the product
I can explain how a factor of zero or one affects the product.
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Lesson details
Key learning points
- When zero is a factor, the product is zero.
- The product of __ and zero is zero.
- The product of zero and __ is zero.
- When one of two factors is 1, the product is equal to the other factor.
Keywords
Zero - Zero is the number that represents no amount or objects.
Product - A product is the result of two or more numbers multiplied together.
Common misconception
Children may have the misconception that multiplying always makes the number bigger and therefore 0 cannot be a product.
Remind children that 0 groups of something is equal to zero. You can show this practically using groups of zero. When a factor is 1 the product is the other factor.
Take time to show that multiplying by zero is always zero through groups of zero. For multiplying by 1, make distinctions between 1 group of ___ and ___ groups of 1 using cubes and counters.
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.
Look at the number sequence: ___, 5, 10
What is the previous multiple of 5?
1
4
Q2.
Look at the number sequence: ___, 10, 20
What is the previous multiple of 10?
8
9
Q3.
Look at the image which shows plates. Select the equation the image represents about the number of sweets you can see.
2 × 1
2 × 2
Q4.
Look at the image. Select the equation the expression which represents the number of cupcakes.
2 × 0
2 × 2
Q5.
Use the image to fill in the gap in the equation: 6 × 5 = × 10
Q6.
Which group of sticker sheets has most stickers?
2 pages of 10 stickers
5 pages of 10 stickers
Exit quiz
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6 Questions
Q1.
Look at the expressions: 0 × 5 and 5 × 0 Which picture matches these expressions?
Q2.
Look at the equations: 1 × 6 = 6 and 6 × 1 = 6 Select the statements that are true for these expressions.
The products are different.
Q3.
Match the expressions to the correct product.
0
1
0
0
2
Q4.
Using what you know about 0 as a factor, what is 16 × 0 =
Q5.
In this puzzle, the numbers are multiplied as shown in the middle. What is the missing number?
1
7
13
Q6.
In this puzzle, the numbers are multiplied as shown in the middle. What can we say about the missing number?
The missing number can only be 0
The missing number is less than 10
The missing number is greater than 7
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