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Computer Science - Khan Academy FREE

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updated 11/12/2015

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Introduction to programming and computer science

Lessons
1) Introduction to Programs Data Types and Variables Writing a basic program. Basics of data types, variables and conditional statements 637 views watch video
2) Python Lists Understanding the basics of lists in Python 489 views watch video
3) For Loops in Python Basics of for loops in Python 531 views watch video
4) While Loops in Python Seeing that a while loop can do the same thing as a for loop 522 views watch video
5) Fun with Strings Experimenting and seeing what we can do with strings 466 views watch video
6) Writing a Simple Factorial Program. (Python 2) Writing a simple factorial program with a "for" loop 514 views watch video
7) Stepping Through the Factorial Program Stepping through what happens when a user inputs a particular value into our factorial program 410 views watch video
8) Flowchart for the Factorial Program Flowchart for the factorial program 480 views watch video
9) Python 3 Not Backwards Compatible with Python 2 Understanding why the example program would not run in Python 3 and how to fix it. 511 views watch video
10) Defining a Factorial Function Defining a function in Python 446 views watch video
11) Diagramming What Happens with a Function Call Variable scope and function calls 440 views watch video
12) Recursive Factorial Function Introduction to recursion. 502 views watch video
13) Comparing Iterative and Recursive Factorial Functions Comparing iterative and recursive factorial functions 516 views watch video
14) Exercise - Write a Fibonacci Function Introduction to the Fibonacci Sequence and a programming challenge 568 views watch video
15) Iterative Fibonacci Function Example One way to write a Fibonacci function iteratively 408 views watch video
16) Stepping Through Iterative Fibonacci Function Understanding how the iterative fibonacci function works for a particular example 448 views watch video
17) Recursive Fibonacci Example Using recursion to write a fibonacci function 490 views watch video
18) Stepping Through Recursive Fibonacci Function Understanding why and how the recursive Fibonacci function works 558 views watch video
19) Exercise - Write a Sorting Function Challenge to write a Python function that can sort a list in-place 390 views watch video
20) Insertion Sort Algorithm Visual description of the insertion sort algorithm 571 views watch video
21) Insertion Sort in Python Basic implementation of insertion sort algorithm 493 views watch video
22) Stepping Through Insertion Sort Function Clarifying what "break" does and stepping through the insertion sort implementation 518 views watch video
23) Simpler Insertion Sort Function Simplifying the while loop for the Insertion Sort function 455 views watch video

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Computer Science - Khan Academy FREE

Lessons

Writing a basic program. Basics of data types, variables and conditional statements

Understanding the basics of lists in Python

Basics of for loops in Python

Seeing that a while loop can do the same thing as a for loop

Experimenting and seeing what we can do with strings

Writing a simple factorial program with a "for" loop

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

Flowchart for the factorial program

Understanding why the example program would not run in Python 3 and how to fix it.

Defining a function in Python

Variable scope and function calls

Introduction to recursion.

Comparing iterative and recursive factorial functions

Introduction to the Fibonacci Sequence and a programming challenge

One way to write a Fibonacci function iteratively

Understanding how the iterative fibonacci function works for a particular example

Using recursion to write a fibonacci function

Understanding why and how the recursive Fibonacci function works

Challenge to write a Python function that can sort a list in-place

Visual description of the insertion sort algorithm

Basic implementation of insertion sort algorithm

Clarifying what "break" does and stepping through the insertion sort implementation

Simplifying the while loop for the Insertion Sort function

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