1. Starter Question
In your jotter write the pseudocode to take in two numbers, add them together then display the answer. Declare variables RECEIVE firstNumber FROM KEYBOARD RECEIVE secondNumber FROM KEYBOARD SET sum TO firstNumber + secondNumber SEND sum TO DISPLAY

2. Learning Intention
I will learn about data types and variables.

3. Analysis
Design
Implementation
Testing
Documentation
Evaluation

4. Data Types and Variables
Once you have your design, you are ready to create your program.
The first step is identifying the pieces of information you will need to store.

5. Data Types and Variables
A variable is used to store data in a program. It’s like a storage box – you can put data in then retrieve it again.
Each variable is given a unique name so it can be identified.
FirstName
age

6. Data Types and Variables
Age 17
Height
1.64
FirstName
Mike
LikesCoffee
true
Gender m

7. Data Types and Variables
Each variable must also be given a Data Type.
This decides what kind of information can be stored in it.

8. Data Types and Variables
Type of Data
Example data
VB Data Type
Text
hello, Sam54, 006
String
Whole Numbers
1, 50, -100
Integer
Real Numbers
1.2, -0.1, 3.97
Single
Boolean
True, False
Character
A, a, #, =
Char

9. Data Types and Variables
Complete question 1 on the following worksheet in your jotter:

10. Programming Tasks
Complete the tasks on pages

11. Data Types and Variables
Naming variables
Creating variables in Visual Basic
Programming on PC

12. Data Types and Variables
Variables must be given meaningful names:
a F age FirstName
Variable names cannot start with a number or contain a space.

13. Data Types and Variables
e.g. a variable to store the registration plate of a car Which of the following are not allowed? a) carRegistration b) Reg Number c) registration_plate

14. Data Types and Variables
Complete question 2 on the worksheet:

15. Data Types and Variables
The way that we declare variables in VB is to use the Dim statement:
Dim <variable name> As <type>
e.g.
Dim age As Integer
Dim LastName As String

16. Data Types and Variables
Complete question 3 on the worksheet.
Type of Data
Example data
VB Data Type
Text
hello, Sam54, 006
String
Whole Numbers
1, 50, -100
Integer
Real Numbers
1.2, -0.1, 3.97
Single
Boolean
True, False
Character
A, a, #, =
Char

17. Programming Tasks
Complete the tasks on pages including the Extension Task

18. Success Criteria
I can identify the correct data types for storing information.