Year 9

Indices and standard form

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Slide decks, worksheets, quizzes and lesson planning guidance designed for your classroom.

Lessons (12)

• In this lesson, we will recap our knowledge of surds. We will rewrite surds in their simplest form and recall how to rationalise the denominator. We will also practise organising surds in order of ascending size.
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• In this lesson, we will recap our knowledge of basic indices. We will explore the power of zero, and carry out calculations involving low power values.
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• In this lesson, we will learn that some powers can be expressed as different powers of different base numbers.
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• In this lesson, we will investigate some of the laws of indices and how they are derived. We will look specifically at multiplying and dividing numbers with the same base.
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• In this lesson, we will begin to work with fractional indices and learn how to evaluate calculations with fractional indices.
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• In this lesson, we will continue working with fractional indices and we will investigate fractional index problems and model their solutions,.
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• In this lesson, we will build on our knowledge of fractional indices and work with negative indices.
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• In this lesson, we will work with powers of 10 with both integers and decimal numbers. We will calculate these numbers as a starting point to investigate standard form.
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• In this lesson, we will learn how to write large numbers in standard form and write numbers given in standard form as an ordinary number.
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• In this lesson, we will learn how to multiply and divide numbers that are presented in standard form.
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• In this lesson, we will learn to add and subtract numbers written in standard form, giving your answer as both ordinary numbers and in standard form.
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• In this lesson, we will recap our knowledge of working with standard form and perform calculations with mixed operations.
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