When students understand the basic concepts of creating and evaluating Boolean expressions, they can use them to control conditional statements. The syntax for using conditionals in Python is listed below:
Python Syntax: if Statement
if boolean_expression:
indented block of statements
if boolean_expression:
indented block of statements
else:
indented block of statements
Python Syntax: if-elif Statement
if boolean_expression_1:
indented block of statements
elif boolean_expression_2:
indented block of statements
else
indented block of statements
Python Syntax: while Statement
while boolean_expression:
indented block of statements
The following video introduces the Python if and while statements. The if, else, and elif variations are all shown. Video Length: 6:55
