Khan Academy

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Khan Academy

Computer Science

Introduction to programming and computer science

1. Introduction to Programs Data Types and Variables
2. Python Lists
3. For Loops in Python
4. While Loops in Python
5. Fun with Strings
6. Writing a Simple Factorial Program. (Python 2)
7. Stepping Through the Factorial Program
8. Flowchart for the Factorial Program
9. Python 3 Not Backwards Compatible with Python 2
10. Defining a Factorial Function
11. Diagramming What Happens with a Function Call
12. Recursive Factorial Function
13. Comparing Iterative and Recursive 

Currency

Videos about currency exchange

1. Currency Exchange Introduction
2. Currency Effect on Trade
3. Currency Effect on Trade Review
4. Pegging the Yuan
5. Chinese Central Bank Buying Treasuries
6. American-Chinese Debt Loop