Printing and Variables Lesson

Printing, Variables, and Variable Types

Use the print function (i.e. print ())

• must have parentheses ()

• must have double quotation marks, "Hello"

• must begin with the word print​

​How to Print or Display Text

Multiple Choice

When printing in python, you must have the following?

• the word 'print'

• double quotation marks

• parentheses ()

• all of the above.

Multiple Choice

Pilar writes the following code:

print("Hello, my name is Pilar!") What will the computer display?

• Hello, my name is Pilar
• Hello, my name is Pilar!
• Hello, my name is Peter!
• Hello, my name is Pilar?

Multiple Choice

Anything you want printed in Python must be within the ...?

• parentheses and quotes

• curly braces only

• quotes only

• brackets only

1. Str(string) - characters, words, letters, spaces

2. Int (integers) - positive and negative whole numbers

3. Float - positive and negative decimal numbers.

Variable Types

Match

Match the example to its variable type.

• "Hello, World!"

• -9

• 4.99

• " @ "

• 100

string

integer

float

string

integer

• string

• integer

• float

• string

• integer

​Variable Naming

• A variable stores information to be used later.

• A variable has a

  • NAME,

  • TYPE,

  • SAVED VALUE.

Example

last_name = "Reyes"

Variable name is last_name

• Type = String

• Assigned value = Reyes
  
  

Multiple Choice

The following variable, shirt_price = 19.99, has a value of ?

• 15.99
• 25.00
• 19.00
• 19.99

Multiple Choice

What is variable name for the following variable, temperature = 99.8 ?

• temp
• temperature
• tempInCelsius
• temperatureValue

Multiple Choice

The variable, location = "Dallas, TX", is what type of variable?

• float

• integer
• string
• boolean

Using and printing a variable

To use a variable, we first must define and declare a variable

Create a variable name and give it an assigned value. Then to print the variable simply put:
print (variable_name)
the print function will print the value attached to the variable name.

Dallas, TX

Line 1 : location = "Dallas, TX"
Line 2: print (location)

Example

Multiple Choice

Lincoln wants to create a variable called hourly wage with an assigned value of 15.00, which naming is correct?

• hourly_wage = 15.00
• hourly_wage = 20.00
• hourly_wage = 10.00
• hourly_wage = 15.50

Multiple Choice

Sara creates the following variable, hours_worked = 12, and she does the following, print(hours_worked). What will be printed?

• 12
• hours_worked

• hours_worked = 12

• 21

Poll

What is your understanding of printing, variables, and variable types?

• 1 = I understand not at all.

• 2 = I understand somewhat.

• 3 = I understand mostly, with little confusion.

• 4 = I understand completely.