Discovering Mathematics Week 6 BOOK B - Unit 5: Algebra 1.

Discovering Mathematics

Week 6

BOOK B - Unit 5:

Algebra

1

Unit 5: Algebra

This unit includes the following sections:

•Why learn Algebra

•Expression

•Simplifying terms

•Brackets

•Linear equations

2

1. Why learn Algebra

3

• 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 …

4

2. Expressions

5

What is a term?

6

Collecting more like terms

7

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)

8

Simplifying Terms

9

Simplifying two or more terms:

10

4. Brackets

11

Expanding the brackets with more than one term

12

4.2 Algebraic fractions

13

Using Algebra

14

5. Linear Equations

15

5.2 How to solve linear equations

16

5.2 Examples

17

5.3 Linear equations with fractions and brackets

18

5.4 Using Linear equations

19

Thank you