# Yr 7 Unit 6 Week 1 - Lesson 4

Yr 7 Unit 6 - Lesson 4
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Slide 1: Slide
MathematicsLower Secondary (Key Stage 3)

This lesson contains 36 slides, with interactive quizzes and text slides.

Lesson duration is: 50 min

## Items in this lesson

Yr 7 Unit 6 - Lesson 4

#### Slide 2 -Slide

Explain what is meant by the term "expand an expression".

#### Slide 3 -Open question

An EXPRESSION describes a combination of variables numbers and arithmetic operations i.e.

#### Slide 4 -Slide

An EXPRESSION describes a combination of constants, variables, coefficients, constants and arithmetic operations i.e. 2x + 3y - 9.

#### Slide 5 -Slide

An EXPRESSION describes a combination of constants, variables, coefficients, constants and arithmetic operations i.e. 2x + 3y - 9.
• variables x and y
• coefficients 2 and 3
• constant 9

#### Slide 6 -Slide

If we expand the expression 2(3x + 1), the answer is 6x + 2,
which law was used?
A
Commutative law
B
Associative law
C
Distributive law
D
None of them

#### Slide 7 -Quiz

Select the answer that gives the correct answer to the expansion of the expression 5(6y + 7)
A
30y + 7
B
6y + 35
C
56y + 57
D
30y + 35

#### Slide 8 -Quiz

Select all the answers that give the correct answer to the expansion of the expression -3(2y - 8)
A
-6y + 24
B
-6y - 24
C
-10y + 4y + 20 + 4
D
-10y + 4y - 20 + 4

#### Slide 9 -Quiz

Calculate the answer to the expression 4(5n - 6) when n = 3.
A
36
B
60
C
9
D
54

#### Slide 10 -Quiz

DO NOW
TITLE - Unit 6 - Week 1 - Lesson 4 DO NOW

QUESTIONS - Do all the questions.

#### Slide 13 -Slide

NEW LEARNING
TITLE - Unit 6 - Week 1 - NEW LEARNING

INSTRUCTIONS - Copy the following notes into your exercise book.

EXERCISE
Factorise 4n + 8

#### Slide 16 -Slide

EXERCISE
Factorise 15 + 9m

#### Slide 17 -Slide

EXERCISE
Factorise 10m + 8n

#### Slide 19 -Slide

A
I can split the cubes into 6 equal groups
B
I can split the cubes into 4 equal groups
C
I can split the cubes into 3 equal groups
D
I can split the cubes into 2 equal groups

#### Slide 24 -Slide

Choose which one of the following statements is false for the expression 6a + 9
A
3 is a factor of the expression
B
6 is a factor of the expression
C
2a + 3 is a factor of the expression
D
3 + 2a is a factor of the expression

#### Slide 25 -Quiz

Which answer is a fully factorised form of the following expression
5(a + 3) + 7(a + 3) - 2(a + 3)
A
14(a + 3)
B
10(a + 3)
C
10(a - 3)
D
10a + 30

#### Slide 27 -Slide

INDEPENDENT STUDY