Starter quiz
- ______ form follows this convention: and and is an integer.
- 'Standard' ✓
- Which of the following are written in standard form?
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- Write 480 000 in standard form.
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- Match each ordinary number to the equivalent number written in standard form.
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- as an ordinary number is ______.
- '2 450 000' ✓
- What should go in the box to make this statement correct?
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Exit quiz
- Standard form follows this convention: and and is an ______.
- 'integer' ✓
- Which of the following are written in standard form?
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- Use a place value grid to write in standard form.
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- Write in standard form.
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- as an ordinary number is ______.
- '0.000408' ✓
- Match each ordinary number to the equivalent number written in standard form.
- ⇔✓
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- ⇔✓
- ⇔✓
Worksheet
Presentation
Lesson Details
Key learning points
- It is difficult to read very small numbers, due to the number of digits involved.
- It can be more efficient to write these very small numbers in standard form.
- There is a convention for standard form.
Common misconception
Pupils can incorrectly write a number in standard form or use a number in incorrect standard form whereby the number A does not satisfy 1 ≤ A < 10 or pupils use division of positive powers of 10.
Standard form represents a multiplicative relationship, so there should always be a multiplication. Embedding the understanding that negative exponents refer to 1/10^n is important. Using the place value chart with fractional and exponent form helps.
Keywords
Exponential form - When a number is multiplied by itself multiple times, it can be written more simply in exponential form.
Associative law - The associative law states that a repeated application of the operation produces the same result regardless of how pairs of values are grouped. We can group using brackets.
Standard form - Standard form is when a number is written in the form A × 10^n, (where 1 ≤ A < 10 and n is an integer).