Maths: Number Plane

8
Directed
Numbers and the Number Plane
This is the last time
I fly El Cheapo Airlines!

Chapter Contents

8:01 Graphing points on the number line
NS4·2
8:02 Reading a street directory
PAS4·2, PAS4·5
PAS4·2, PAS4·5
8:03 The number plane
Mastery test: The number plane
8:04 Directed numbers
NS4·2
NS4·2
8:05 Adventure in the jungle
Investigation: Directed numbers
8:06 Addition and subtraction of directed
NS4·2
numbers
8:07 Subtracting a negative number
NS4·2
ID Card

Learning Outcomes

8:08 The number plane extended
PAS4·2, PAS4·5
8:09 Multiplication of directed numbers
NS4·2
Investigation: Multiplying directed numbers
Challenge: Using pronumerals
8:10 Division of directed numbers
NS4·2
NS4·2
8:11 Using directed numbers
8:12 Directed numbers and the calculator
NS4·2
Fun Spot: Try this quick quiz!
Maths Terms, Diagnostic Test, Revision
Assignment, Working Mathematically

NS4·2 Compares, orders and calculates with integers.
PAS4·2 Creates, records, analyses and generalises number patterns using words and algebraic symbols in a variety of ways.
PAS4·5 Graphs and interprets linear relationships on the number plane.
Working Mathematically Stage 4.
1 Questioning, 2 Applying Strategies, 3 Communicating, 4 Reasoning, 5 Reflecting.

207

8:01 | Graphing Points on the

Outcome NS4·2

Number Line

pr

quiz ep Write down the number sentence represented by each number line.
1
2
0

8:01

2

4

6

8

0

10

2

4

6

8

10

...+...=9

. . . + . . . = 10
3

4
0

2

4

6

8

10

5

0

2

4

6

8

10

0

2

4

6

8

10

0

2

4

6

8

10

0

2

4

6

8

10

6
0

2

4

6

8

10

0

2

4

6

8

10

7

8

9

10
0

2

4

6

8

10

The number line can be very useful. It can help us to perform additions, subtractions, multiplications and even divisions. The number line can also be used