Khan Academy: Python Programming: Writing a Simple Factorial Program. (Python 2)

Stepping through what happens when a user inputs a particular value into our factorial program.

Defining a function in Python

A Khan Academy exercise will challenge students to write a Python function that can sort a list in-place. [2:12]

Basics of 'for' loops in the Python programming language.

Learn about the most powerful data structures in Python! Understanding the basics of lists in the computer programming language Python. [11:41]

Explains one way to write a Fibonacci function iteratively.

Introduction to the Fibonacci sequence, and a programming challenge to write a Fibonacci function.

Explains how to use recursion to write a Fibonacci function in Python. [7:37]

Seeing that a 'while' loop in Python can do the same thing as a 'for' loop.

Understanding why and how the recursive Fibonacci function works on python. [8:04]