# Yr 7 Unit 6 Week 1 - Lesson 3

Yr 7 Unit 6 - Week 1 - Lesson 3
1 / 32
Slide 1: Tekstslide
MathematicsLower Secondary (Key Stage 3)

In deze les zitten 32 slides, met interactieve quizzen en tekstslides.

Lesduur is: 50 min

## Onderdelen in deze les

Yr 7 Unit 6 - Week 1 - Lesson 3

#### Slide 2 -Tekstslide

Describe the commutative law and include an example

#### Slide 3 -Woordweb

Explain what we mean by collecting like terms

#### Slide 4 -Woordweb

Simplify the following expression by collecting like terms:
2a + 3b + 4a + 5b
A
5a + 9b
B
6a + 8b
C
6a + 3b
D
2a + 8b

#### Slide 5 -Quizvraag

DO NOW
TITLE - Unit 4 Week 1 - Lesson 3 DO NOW

#### Slide 8 -Tekstslide

NEW LEARNING
TITLE - Unit 4 Week 1 - Lesson 3 NEW LEARNING

INSTRUCTIONS - Copy the notes in this section into your book.

A
6 x n + 6 x 2
B
6(n + 2)
C
6 + n x 6 + 2
D
6n + 12

#### Slide 13 -Tekstslide

How would we expand the following expression 5(3 - n)
A
5 x 3 - 5 x n
B
5 x 3 - n
C
5 - 5 x n
D
None of them

#### Slide 14 -Quizvraag

Expand the following expression
5(3 - n)
A
15 - 3n
B
15 - 5n
C
5n - 15
D
10n

#### Slide 15 -Quizvraag

Collect like terms for the following expression: a + 2a + 3a + 4a
A
9a
B
10a
C
3a + 7a
D
a10

#### Slide 18 -Tekstslide

DEVELOP LEARNING
TITLE - Unit 4 Week 1 - Lesson 3 DEVELOP LEARNING
INSTRUCTIONS - Draw 3 arrays to show the expansion of:
1.  12(n - 1)
2.  12(10 - n)
3.   5(2n - 6)

DEVELOP LEARNING
1.  12(n - 1)

DEVELOP LEARNING
2.  12(10 - n)

DEVELOP LEARNING
3.  5(2n - 6)

#### Slide 23 -Tekstslide

When n = 3 which expression is the odd one out?
-2(5n + 3)
A
2(n - 5)
B
-(n + 1)
C
4(4 - n)
D
-4(n - 2)

#### Slide 25 -Tekstslide

Expand the expression. Which is the correct answer?
-2(5n + 3)
A
-10n + 5
B
-10n + 1
C
-10n + 6
D
-10n - 6

#### Slide 27 -Tekstslide

We can ______________  an expression by using the

_______________ property.

For example, 3( n + ___ ) = ___   +   ___
Complete the following sentences by dragging the list of words into their correct positions.
distribution
expand
3n
2
6