​Remember ....

A variable is a named storage location in memory that holds a value which can change while the program is executed.
By naming a variable, you can access the data assigned to it easily throughout the program.

​

A variable can hold one value (piece of data) at a time. This value can change throughout the execution of a program. When a new value is placed in (or assigned to) a variable, it replaces the last value.

By Mr. Dwedari​

• Identify the variables within a program.

• Understand data types

• Identify and describe what a program does.

• Debug a program ​

​Learning Objectives:

Some text here about the topic of discussion

What do you think this program does and why?

​​

​Think, Pair, Share ....

By Mr. Dwedari​

​personName = "Mr Shaw"

print(personName)

​Explanation ...

What do you think this program does?

By Mr. Dwedari​

​This is the variable identifier --->personName = "Mr Shaw"

​

print(personName)​<---This prints the value stored
in the variable

​Try another one...

​What is the variable in this program? What would it print out?

x = "Mr Shaw"

print("x")

This is a variable. ---->x = "this is message one"<----Data type and value​

This is a variable. ----> ​y = "5" <----Data type and value

​

​

​

​Explanation

Identify the variables in the program:​

​print(x, y)

x = "this is message one"

​y = "5" ​

print(x, y)

​

​What will the last line output?

​

Examples:

x = "My name is Oscar"

​y = 8.4 ​

age = 18

Mobile = "+447751234567"

postcode= "M46 1AA"

s = "18"

answer= False​

​Note: With Boolean variables, the first letters of True or False must be in uppercase

​Data Types

Different types of data can be assigned to variables

​<<< String (a sequence of letters, numbers and/or symbols)

Examples:

x = "My name is Oscar"

​y = 8.4 ​

age = 18

Mobile = "+447751234567"

postcode= "M46 1AA"

s = "18"

answer= False​

​Note: With Boolean variables, the first letters of True or False must be in uppercase

​Data Types

Different types of data can be assigned to variables

​<<< String (a sequence of letters, numbers and/or symbols)

​<<< Float/ Real (a number with decimal point)

Examples:

x = "My name is Oscar"

​y = 8.4 ​

age = 18

Mobile = "+447751234567"

postcode= "M46 1AA"

s = "18"

answer= False

​Note: With Boolean variables, the first letters of True or False must be in uppercase

​Data Types

Different types of data can be assigned to variables

​<<< String (a sequence of letters, numbers and/or symbols)

​<<< Float/ Real (a number with decimal point)

​<<< Integer (a whole number)

Examples:

x = "My name is Oscar"

​y = 8.4 ​

age = 18

Mobile = "+447751234567"

postcode= "M46 1AA"

s = "18"

answer= False​

​Note: With Boolean variables, the first letters of True or False must be in uppercase

​Data Types

Different types of data can be assigned to variables

​<<< String (a sequence of letters, numbers and/or symbols)

​<<< Float/ Real (a number with decimal point)

​<<< Integer (a whole number)

​<<< String

Examples:

x = "My name is Oscar"

​y = 8.4 ​

age = 18

Mobile = "+447751234567"

postcode= "M46 1AA"

s = "18"

answer= False​

​Note: With Boolean variables, the first letters of True or False must be in uppercase

​Data Types

Different types of data can be assigned to variables

​<<< String (a sequence of letters, numbers and/or symbols)

​<<< Float/ Real (a number with decimal point)

​<<< Integer (a whole number)

​<<< String

​<<< String

Examples:

x = "My name is Oscar"

​y = 8.4 ​

age = 18

Mobile = "+447751234567"

postcode= "M46 1AA"

s = "18"

answer= False​

​Note: With Boolean variables, the first letters of True or False must be in uppercase

​Data Types

Different types of data can be assigned to variables

​<<< String (a sequence of letters, numbers and/or symbols)

​<<< Float/ Real (a number with decimal point)

​<<< Integer (a whole number)

​<<< String

​<<< String

​<<< String (whole number but surrounded by " ". Therefore it is String )

Examples:

x = "My name is Oscar"

​y = 8.4 ​

age = 18

Mobile = "+447751234567"

postcode= "M46 1AA"

s = "18"

answer= False

​Note: With Boolean variables, the first letters of True or False must be in uppercase

​Data Types

Different types of data can be assigned to variables

​<<< String (a sequence of letters, numbers and/or symbols)

​<<< Float/ Real (a number with decimal point)

​<<< Integer (a whole number)

​<<< String

​<<< String

​<<< String (whole number but surrounded by " ". Therefore it is String )

​<<< Boolean (only False/True can be assigned to this variable)

Thank you!

By Mr. Dwedari​