# Yr 8 Unit 4 Week 1 - Lesson 3

Yr 8 Unit 4 Week 1 - Lesson 3
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Slide 1: Tekstslide
MathematicsLower Secondary (Key Stage 3)

In deze les zitten 33 slides, met interactieve quizzen en tekstslides.

Lesduur is: 50 min

## Onderdelen in deze les

Yr 8 Unit 4 Week 1 - Lesson 3

#### Slide 1 -Tekstslide

Explain the difference between a horizontal line and a vertical line.

#### Slide 2 -Woordweb

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

INSTRUCTIONS - Write down the questions in your exercise book and answer them.

QUESTIONS - Do the questions on the left hand side.

timer
4:30

#### Slide 5 -Tekstslide

Red
Green
Blue
Purple
Use the image above and the colour of the lines to drag either horizontal or vertical onto the colour targets.
Horizontal
Vertical
Horizontal
Vertical

timer
2:00

#### Slide 7 -Tekstslide

Drag and drop the correct values onto the inequalities above in order to describe the two shaded regions in the graph to the right.
-2
-1
0
1
2
3
4
5
6
7
8
9

#### Slide 8 -Sleepvraag

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

INSTRUCTIONS - Copy the sentence to the left of the graph and draw the graph in your exercise book.

#### Slide 10 -Tekstslide

Using the notes from the New Learning, describe what is meant by a LATTICE POINT

#### Slide 11 -Woordweb

LATTICE POINT
A lattice point is a point on a graph whose coordinate positions are where a VERTICAL AND HORIZONTAL LINE MEET.
The x and y value are INTEGERS i.e.
x = 1 and y = 2
x = -3 and y = -5

A
1 < x < 3
B
1 ≤ x < 3
C
1 ≤ x ≤ 3
D
1 < x ≤ 3

#### Slide 15 -Tekstslide

The inequality represented by the shaded region is:
A
-5 < y < 5
B
x < 9 and y < 4
C
-1 < y < 4
D
-9 < x < 9

A
4
B
6
C
8
D
9

#### Slide 20 -Tekstslide

3

Draw a sketch to help you work out how many lattice points are enclosed by the region:

1 < x < 4
1 < y < 4
A
2
B
3
C
4
D
6

#### Slide 21 -Quizvraag

Today we have been looking at graphs and how regions can be defined using inequalities.
I understand all of it
I am not sure about how the inequalities are shown on a graph
I have some questions that I would like to ask
I was able to follow some parts
I did not understand it.

#### Slide 22 -Poll

INDEPENDENT STUDY
TITLE - Unit 4 Week 1 - Lesson 3 INDEPENDENT STUDY

INSTRUCTIONS - Only do questions 1 - 2 and show your working out on the sheets provided.

#### Slide 26 -Tekstslide

List one thing that we have done in this lesson.

#### Slide 27 -Woordweb

Do you understand how an inequality can be shown on a graph?
Yes I understand how an inequality can be shown on a graph
I can shade a simple inequality such as x < 2 on a graph
I can draw a simple inequality with some help
I do not know how to draw a simple inequality on a grapg