Discovering Mathematics

Week 6

BOOK B - Unit 5:

Algebra

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Unit 5: Algebra

This unit includes the following sections:

•Why learn Algebra

•Expression

•Simplifying terms

•Brackets

•Linear equations

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1. Why learn Algebra

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• The advantage of writing the information in a question as an equation is that it reduces the problem of answering the question to the problem of solving an equation.

• Algebra is used in many different fields. It is used in mathematical models, so that predictions can be made by solving equations.

• Algebra allows you to describe, analyse and understand the world, to solve problems and to set up procedures.

• Let us start learning algebra …

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2. Expressions

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What is a term?

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Collecting more like terms

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Answer: 1 adult at £9.50 + 1 child at £4.00 + 1 child (free) = £13.50.Change = 20 – 13.5 = £6.5

Solve activity 17 (bring your answer to be discussed next session)

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Simplifying Terms

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Simplifying two or more terms:

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4. Brackets

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Expanding the brackets with more than one term

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4.2 Algebraic fractions

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Using Algebra

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5. Linear Equations

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5.2 How to solve linear equations

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5.2 Examples

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5.3 Linear equations with fractions and brackets

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5.4 Using Linear equations

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Thank you