What is Programming?

A Tour of Programming on Khan Academy

Making Drawings with Code

Quick tip: number scrubbing

Challenge: Simple snowman

Challenge: Waving snowman

Coloring with code

Challenge: Sunny snowy day

The Power of the Docs

Intro to Variables

Project: What's for Dinner?

Quiz: Variables

Challenge: Bucktooth Bunny

More on Variables

Challenge: Funky Frog

Review: Variables

What are animations?

Challenge: Exploding Sun

Mouse Interaction

Challenge: Tasty Tomato

Project: Crazy Painter

Incrementing Shortcuts

A shorter shortcut

Challenge: Parting Clouds

Resizing shapes with variable expressions

Terrific Text: Part One

Challenge: My Favorite Foods

Terrific Text: Part Two

Challenge: Mouse Tracker

Review: Text and Strings

Project: Ad Design

Intro to JS- Drawing and Animation: Functions

Challenge: Say Your Name

Function Parameters

Challenge: Moles in Holes

Function Return Values

Challenge: Calculator

Local and Global Variables

Review: Functions in JS Drawing and Animation

Project: Fish Tank

If Statements

Challenge: Bouncy Ball

More Mouse Interaction

Challenge: Your First Painting App

Booleans

Challenge: Number Analyzer

Logical Operators

Challenge: Your First Button

Challenge: Smarter Button

If/Else - Part 1

Challenge: Flashy Flash Card

If/Else - Part 2

Review: Logic and if Statements

Project: Magic 8-Ball

Intro to While Loops

Challenge: A Loopy Ruler

More While Loops: Balloon Hopper

Challenge: A Loopy Landscape

For Loops! A New Kind of Loop

Challenge: Lined Paper

Nested For Loops

Review: Looping

Project: Build-a-House

Intro to Arrays

Challenge: Favorite Fruits

Looping through Arrays

Challenge: Favorite Animals

Modifying Arrays

Challenge: Constellation Maker

Review: Arrays

Project: Make it Rain

Intro to Objects

Challenge: Recipe Card

Modifying Objects

Challenge: Picture Painter

Arrays of Objects

Challenge: Movie Reviews

Review: Objects

Project: Bookshelf

Object Types

Challenge: Double Rainbow

Object Methods

Challenge: SmileyFace

Object Inheritance

Challenge: Flower Grower

Review: Object-Oriented

What to Learn Next - Computer Programming

Quiz: While Loops

Help Others Learn Programming on Khan Academy

Learning programming on Khan Academy

Quick tip: color picking

Making animations

Spin-off of "Project: Shooting star"

Challenge: Mouse movement mania

Using math expressions in JS

Quiz: Variable Expressions

Challenge: Brown bear eyes

Spin-off of "Project: Animal attack"

Special ProcessingJS functions

Debugging with println()s

More debugging tips

Readable Code

Clarifying with Comments

Quiz: Clean code

Planning a programming project

Welcome to the Web! - Making Webpages Intro

HTML Basics

Challenge: Write a Poem

HTML: Text Emphasis

Challenge: You Can Learn Text Tags

HMTL: Lists

Challenge: Your Learning List

HTML: Images

Challenge: A Picture-Perfect Trip

CSS Basics

Challenge: Colorful Creature

CSS: Selecting By ID

CSS: Selecting by Class

Challenge: Apples and Bananas Classes

Quiz: Simple CSS Selectors

Project: Travel Webpage

HTML Links

Challenge: Links You Love

HTML Internal Links

Challenge: Jump Around

HTML Tables

Challenge: The Dinner Table

HTML Comments

Project: Recipe Book

CSS Zen Garden

CSS Font-Family Property

Challenge: Fancy Font Families

CSS Font-Size Property

Challenge: Great Big Font Sizes

CSS Font Styles and Shorthand

Challenge: Famous Font Formats

More CSS Text Properties

Quiz: Text Properties

CSS Inheritance

Project: Blog

CSS Grouping Elements

Challenge: Group the Groupers

CSS Width, Height, and Overflow

The Overflowing Ocean

CSS Box Model

Challenge: The Boxer Model

CSS Position

Challenge: Position Planet

CSS in the Wild - Google Maps

CSS Floating Elements

Challenge: Floating Clouds

Quiz: CSS Layout

Project: Event Invite

Using Multiple CSS Classes

Challenge: A Classy Gallery

Combining CSS Class and Element Selectors

Challenge: Classes of Elements

CSS Descendant Selectors

Challenge: Descendants of Khan

Grouping CSS Selectors

CSS Dynamic Pseudo-Classes

Challenge: Grouped Animals

CSS Specificity

Quiz: CSS Specificity

HTML Validation

Quiz: Validate this HTML

What to Learn Next - HTML and CSS

Quick tip: HTML tags

Challenge: Seasonal ids

Developing webpages outside of Khan Academy

Using the browser developer tools

Planning your webpage

Using inline CSS styles

Using external stylesheets

Webpage design

Welcome to SQL

Creating a table and inserting data

Challenge: Book list database

Querying the table

Challenge: Box office hits database

Aggregating data

Challenge: TODO list database stats

S-Q-L or SEQUEL?

Spin-off of "Project: Design a store database"

More complex queries with AND/OR

Challenge: Karaoke song selector

Querying IN subqueries

Challenge: Playlist maker

Restricting grouped results with HAVING

Challenge: The wordiest author

Who issues SQL queries?

Calculating results with CASE

Challenge: Gradebook

Spin-off of "Project: Data dig"

Splitting data into related tables

JOINing related tables

Challenge: Bobby's Hobbies

Joining related tables with left outer joins

Challenge: Customer's orders

Joining tables to themselves with self-joins

Challenge: Sequels in SQL

Combining multiple joins

Challenge: FriendBook

Spin-off of "Project: Famous people"

More efficient SQL with query planning and optimiz...

Using SQL to update a database

Changing rows with UPDATE and DELETE

Challenge: Dynamic Documents

Altering tables after creation

Challenge: Clothing alterations

Make your SQL safer

Spin-off of "Project: App impersonator"

What to Learn Next - SQL Queries and Managing Data

Intro to Games and Visualizations

Translation

Rotation

Scaling

Multiple transformations

Intro to Hoppy Beaver

Beaver character

Forest environment

Stick collisions

Scoring and winning

Project: Hoppy Beaver Extreme

Intro to "Memory"

Grid of tiles

Playing the game

Project: Memory++

Challenge: Translation Salvation

Challenge: Rotation

Challenge: Optical Illusion

Challenge: Shining Scaling Sun

Challenge: Story Teller

Animated Scenes

Interactive Scenes

Button-Controlled Scene Changes

What are Buttons?

A Button Object Type

Challenge: Rabbit Racer

What are 3D Shapes?

Creating 3D Shapes

Drawing 3D Shapes

Rotating 3D Shapes

Generating 3D Shapes

Challenge: Tic-Tac-Toe

Challenge: Pong

A Button Function

What are scenes?

Simple scene changes

Trigonometric ratios in right triangles - Practice...

Welcome to Natural Simulations

Random walks

Challenge: Random blobber

Probability & non-uniform distributions

Challenge: Up walker

Normal Distribution of Random Numbers

Challenge: Gaussian walk

Custom Distribution of Random Numbers

Challenge: Lévy walker

Project: Paint splatter

Perlin noise

Challenge: Noisy step walker

Two Dimensional Noise

Challenge: Animated noise

Project: Mountain range

Intro to vectors

Challenge: Vector walker

More Vector Math

Challenge: Lightsaber

Vector Magnitude & Normalization

Challenge: Magnitude visualizer

Vector Motion

Challenge: Braking car

Static Functions vs Instance Methods

Challenge: Static functions

Interactive Vector Motion

Challenge: Mouse stalker

Project: Computational creatures

Newton's laws of motion

Challenge: Floating balloon

Motion of Many Objects

Challenge: Wall balls

Model Gravity and Friction

Challenge: Speed bumps

Air and Fluid Resistance

Challenge: Sinking logs

Gravitational Attraction

Challenge: Artwork generator

Mutual Attraction

Challenge: Mutual repulsion

Project: Creature comforts and critter jitters

Angles and units

Challenge: Spinning baton

Angular Velocity

Challenge: Falling boulder

Trigonometry

Pointing Towards Movement

Challenge: Turning Car

Polar Coordinates

Challenge: Spiral drawer

Project: Asteroids spaceship

Oscillation amplitude and period

Challenge: Rainbow slinky

Oscillation with Angular Velocity

Challenge: Spaceship ride

Waves

Challenge: Many waves

Trig and Forces the Pendulum

Challenge: Pendulum puppet

Spring Forces

Project: Curling, crawling, circling creatures

Intro to particle systems

A single particle

Challenge: Falling leaves

A Particle System

Challenge: Fish bubbles

Systems of Particle Systems

Challenge: Fire starter

Particle Types

Challenge: Magical cauldron

Particle Systems with Forces

Challenge: River rocks

Project: Creature Colonies

Welcome to Making Webpages Interactive

Quiz: HTML/CSS Recap

Quiz: JavaScript Recap

Putting JS in a Webpage

Challenge: A Scripted Script Tag

The DOM (Document Object Model)

Quiz: What is DOM?

Finding Elements by ID

Challenge: ID Changer

Finding Multiple DOM Elements by Tag or Class Name

Challenge: Custom Name Tags

Finding Elements by CSS Selector

Challenge: Query Modernizer

Summary: DOM Access Methods

Changing Attributes

Challenge: Avatar Attributes

Changing Styles

Challenge: Style Guide

Changing CSS Classes

Challenge: Classification

Setting innerHTML and textContent

Challenge: The Inside Story

Creating Elements from Scratch

Challenge: Create a Solar System

Summary: DOM Modification Techniques

Making Webpages Interactive with Events

Adding an Event Listener

Challenge: Cat Clicker

DOM Event Types

Using the Event Properties

Challenge: Cat-stache

Processing Forms with Events

Challenge: Mad Libs

Preventing Default Behavior of Events

Summary: DOM Events

The Window Object

Animating DOM with setInterval

Challenge: Stopwatch

Animating Styles with requestAnimationFrame

Challenge: Catwalk

Animating Styles with CSS Animations

What DOM Animation Technique Should You Use?

Debugging webpages with the browser console

What's a JS library?

Using a JS Library: Slideshow library

Where are JS libraries hosted?

Quiz: JS libraries

The world of JS libraries

Which JS library should you use?

What to Learn Next - Making webpages interactive

Welcome to "Meet the Professional"!

Yann Dauphin, Researcher and Bass player

Brenda Jin, Mobile Prototyper and DJ

Tom Heinan, Mobile Developer, Pilot, and Zombie

Amy Quispe, Data Liberator and Developer Relater

Bill Mills, Physicist and Interdisciplinary Progra...

Carrie Cai, Researcher and Dancer

Philip Guo, Python Tutor and Writer

Lauren Haynes, Product Manager and Lindy Hopper

Marcos Ojeda, Designer, DJ, and Dog Owner

Allyson Lubimir, Support Engineer and Cat Lover

Sarah Northway, Game Maker and Nomad