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Select Playlist
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"The One World Schoolhouse" book
1400s quiz
1913 Centennial Celebration
2003 AIME
2008 Bank bailout
2011-2012 Greek Debt Crisis
2013 AMC 10 A
2D divergence theorem
A beginner's guide to contemporary art
A beginner's guide to the Baroque
A beginner's guide to the Renaissance
A beginner's guide to the medieval period
A beginners guide to the Trecento (1300s)
A system for solving the King's problems
About pi and tau
Absolute value
Absolute value equations
Abstract Expressionism
Acceleration
Acid/base
Acids and bases
Adding and subtracting decimals
Adding and subtracting decimals percentages and fractions
Adding and subtracting fractions
Adding and subtracting fractions with common denominators
Adding and subtracting fractions word problems
Adding and subtracting negative numbers
Adding and subtracting rational numbers
Adding multi-digit numbers
Adding with carrying within 1000
Addition and subtraction word problems
Addition reactions of conjugated dienes
Addition with carrying
Advanced ratios and proportions
Advanced sequences and series
Aftermath of World War I
Age word problems
Aggregate demand and aggregate supply
Alcohol nomenclature and properties
Algebra I
Algebra II
Algebraically determining segment length
Alkene nomenclature
Alkene reactions
Alkene reactions
Alkyne reactions
Altitudes
American Modernism
American civics
Amines in reactions
Amino acids and proteins
Analysis of variance
Analyzing functions
Analyzing linear functions
Ancient
Ancient Egypt
Ancient Greece
Ancient Near East
Ancient Rome
Ancient cryptography
Ancient information theory
Angle basics
Angle basics and measurement
Angle bisectors
Angles
Angles between intersecting and parallel lines
Angles between intersecting lines
Angles with triangles and polygons
Animation Basics
Applying linear equations
Applying multiplication and division
Area
Area and circumference of circles
Area and perimeter
Area basics
Area models and multiplication
Area models to visualize multiplication
Area, volume, and surface area
Arithmetic properties
Aromatic stability
Arrays
Art and the French state
Art of the Americas
Arterial Stiffness
Artist interviews
Arts of the Islamic world
Asthma
Asymptotes and graphing rational functions
Attention and language
Average costs (ATC, MC) and marginal revenue (MR)
Average fixed, variable and marginal costs
Average rate of change
Balance of payments- current account and capital account
Balanced and unbalanced forces
Banking and Money
Bar charts
Basic matrix operations
Basic multiplication
Basic probability
Basic sequences and series
Basic set operations
Basic trigonometric ratios
Becoming a Better Programmer
Beginning of World War I
Behind the scenes at MoMA
Ben Milne - CEO of Dwolla
Bernoulli distributions and margin of error
Between perfect competition and monopoly
Big Questions in Modern & Contemporary Art
Big bang and expansion of the universe
Big picture talks and media
Binomial distribution
Binomial theorem
Bit-zee Bot
Bitcoin
Black-Scholes Formula
Blockades and American entry
Blood
Blood Vessel Diseases
Blood pressure
Blood pressure control
Blood vessels
Bond-line structures
Bonds
Box and whisker plots
Box-and-whisker plots
Brain teasers
Breastfeeding
Breathing Control
Bringing it all together
Britain & America in the Age of Revolution
Buddhist Art
Burgundy
Burnett Elementary
Byzantine
CAHSEE
Calculus AB example questions
Calculus BC sample questions
Capacitors
Capacity utilization and inflation
Carolingian
Cash versus accrual accounting
Cell membrane overview
Cells and cell division
Cellular respiration
Centripetal acceleration
Cepheid variables
Cervical Spine
Chain rule
Challenging complex number problems
Change of basis
Changing the PV Loop
Chemical reactions (stoichiometry)
Chi-square probability distribution
China
Chinese currency and U.S. debt
Chirality and absolute configuration
Chirality and the R,S system
Ciphers
Circles
Circumference and area of circles
Classic function videos
Classifying shapes
Coaching in a K-12 environment
Collateralized debt obligations
Colon Disease
Color in organic molecules
Common Core
Comparative advantage and gains from trade
Comparing decimals
Comparing fractions
Comparing with multiplication
Complementary and supplementary angles
Completing the square
Completing the square and the quadratic formula
Complex and repeated roots of characteristic equation
Complex numbers
Components of GDP
Compound and absolute value inequalities
Compound events
Compound interest basics
Compound, independent events
Computing with scientific notation
Concept of multiplication and division
Conceptual art
Conceptualizing decimals and place notation
Conceptualizing decimals and place value
Confidence intervals
Conformations
Conformations of alkanes and cycloalkanes
Congruence and isosceles and equilateral triangles
Congruence postulates
Conic section basics
Conics from equations
Conics in the IIT JEE
Constructing and slicing geometric shapes
Constructing equations in slope-intercept form
Constructing numeric expressions
Constructing proportions
Consumer and producer surplus
Consumption function
Continuity using limits
Continuous compound interest and e
Continuous compounding and e
Converting between fractions and decimals
Converting fractions to decimals
Converting repeating decimals to fractions
Coordinate plane
Corporate bankruptcy
Corporate metrics and valuation
Corporate taxation
Counting
Crash Course Biology
Crash Course Ecology
Credit Crisis
Credit cards and loans
Credit default swaps
Cross topic arithmetic
Cryptography challenge 101
Cubism and its impact
Curl
Currency reserves
DVD Player
Dada & Surrealism
Danny O'Neill - President of The Roasterie
Data
Data sufficiency
Davis Guggenheim - Filmmaker
Deadweight loss
Decimals and fractions
Decimals on a number line
Decomposing fractions
Deductive and inductive reasoning
Definite integrals
Deflation
Dependent and independent variables
Dependent events
Dependent probability
Depreciation and amortization
Describing ratios
Diastereomers and meso compounds
Diels-alder reaction
Digital Camera
Dilution
Direct and inverse variation
Directing Effects
Disc method
Discovery Lab 2012
Discovery Lab 2013
Discovery of batteries
Discovery of electromagnetism
Discovery of magnetic fields
Discovery of magnetism
Discovery of resistors
Displacement, velocity and time
Divergence
Divergence theorem (3D)
Divergence theorem proof
Dividing decimals
Dividing fractions
Dividing fractions by fractions
Dividing polynomials
Dividing whole numbers and decimals
Divisibility and factors
Divisibility tests
Division
Domain and range
Doodling in math
Dot structures
Double integrals
Drawing Basics
E1 and E2 reactions
Early Christian
Early Medieval Art
Earth's rotation and tilt
Eastside Prep
Economic profit and opportunity cost
Eigen-everything
Electric Motor
Electricity and magnetism
Electronegativity
Electrophilic Aromatic Substitution
Electrostatics
Elimination reactions
Ellipses
Elon Musk - CEO of Tesla Motors and SpaceX
Endocrine system
Endocrinology and Diabetes
England
Epsilon delta definition of limits
Equation of a line
Equations for beginners
Equations of parallel and perpendicular lines
Equivalent expressions
Equivalent fractions and simplified form
Estimating and rounding with decimals
Estimating line of best fit
Estimating probability
Etruscan art
Evaluating expressions
Evaluating expressions with unknown variables
Evaluating function expressions
Evolution and natural selection
Evolution and population dynamics
Exact equations and integrating factors
Exponent properties
Exponent properties
Exponential growth and decay
Exponents
Expressionism
Factoring by grouping
Factoring quadratic expressions
Factoring quadratics
Factoring quadratics in two variables
Factoring simple expressions
Factoring special products
Factors and multiples
Fancy multiplication and division word problems
Farenheit and Celsius conversion
Fetal Circulation
Finding inverses and determinants
Fischer projections
Flanders
Florence
Florence
Fluids
Flux in 3D and constructing unit normal vectors to surface
Force of tension
Foreign exchange and trade
Formal charge and resonance
Formation of carboxylic acid derivatives
Forward and futures contracts
Fractional reserve accounting
Fractional reserve banking
France
France's many revolutions and republics
Free radical reaction
French Revolution
Function introduction
Function inverses
Function notation
Functional groups
Functions
Functions and linear transformations
Fundamental theorem of calculus
GDP and the circular flow of income and expenditures
Gas Exchange
Geithner Plan
Geometric constructions
Geometry
German art between the wars
Get on Khan Academy
Getting a feel for equations and inequalities
Getting inspired by fellow teachers
Giles Shih - President and CEO of BioResource International
Gothic
Gradient
Graphing and analyzing proportional relationships
Graphing functions
Graphing inequalities
Graphing linear equations in slope-intercept form
Graphing linear inequalities
Graphing quadratics
Graphing rational functions
Graphing solutions to equations
Graphs of trig functions
Greatest common divisor
Greatest common factor
Green's theorem
Growth and Metabolism
Hair Dryer
Haitian Revolution
Harmonic motion
Health Care System
Healthy Lifestyle
Heart Depolarization
Heart Disease and Stroke
Heart Muscle Contraction
Heart introduction
Hedge funds
Heredity and genetics
Heron's formula
Hexaflexagons
High Renaissance: Florence and Rome
High Tech Middle School
Historical circumstances explained by AD/AS
History of life on Earth
Holland
Home equity and personal balance sheets
Homogeneous equations
Hot off the press
Household
Housing price conundrum
How to guides
Human biology
Humanity on Earth
Hybrid orbitals
Hybridization
Hyperbolas
Hypertension
Hypothesis testing with one sample
Hypothesis testing with two samples
IIT JEE
IS-LM Model
Ideal gas laws
Identifying conics from equations
Immunology
Implicit differentiation
Impressionism
Improper integrals
Inclined planes and friction
Indefinite integral as anti-derivative
Induction
Inequalities
Inequalties : Greater than and less than basics
Inflation basics
Inflation scenarios
Inflationary and deflationary scenarios
Influenza
Influenza Diagnosis
Influenza Pathology
Influenza Prevention and Treatment
Influenza Special Topics
Influenza Symptoms
Innova Schools (Peru)
Integrate Khan Academy into your curriculum
Integration by parts
Interest as the price of money
Interest basics
Interest rate swaps
International style architecture
Interpreting angles
Interpreting linear expressions
Intro to Programming
Intro to addition and subtraction
Intro to complex analysis
Intro to differential equations
Intro to hyperbolic trigonometric functions
Intro to percentages
Introduction
Introduction to Euclidean geometry
Introduction to derivatives
Introduction to differential calculus
Introduction to economics
Introduction to functions
Introduction to statistics
Introduction to stocks
Introduction to the Atom
Inverse functions and transformations
Inverse trig functions
Inverting matrices
Investment and consumption
Italy
KA in Idaho
KIPP
Keynesian Cross
Keynesian thinking
Khan Academy and beyond
Khan Academy at home
Khan Academy in Higher Education
Khan Academy in K-12 classrooms
Khan Academy in other learning environments
Kinematic formulas and projectile motion
Koch snowflake fractal
L'Hôpital's rule
Lab Values and Concentrations
Labor and marginal product revenue
Laplace transform
Laplace transform to solve a differential equation
Lara Morgan - Founder of Pacific Direct
Late Victorian
Lattice multiplication
Law of cosines and law of sines
LeBron asks
Learning
Least common multiple
Leveraged buy-outs
Life and death of stars
Life in the Universe
Life insurance
Life of a company--from birth to death
Light and fundamental forces
Limit basics
Limits
Limits and infinity
Line integrals for scalar functions
Line integrals in vector fields
Line of symmetry
Linear and nonlinear functions
Linear combinations and spans
Linear dependence and independence
Linear equation word problems
Linear equations in one variable
Linear homogeneous equations
Linear inequalities
Linear regression and correlation
Linear transformation examples
Lines, line segments and rays
Logarithm basics
Logarithm properties
Logarithmic functions
Logic and If Statements
Logical reasoning
Long live tau
Loooong division!
Looping
Los Altos School District
Lung introduction
Lymphatic system
Maclaurin and Taylor series
Manipulating expressions
Mannerism
Marc Ecko - Founder of Ecko Unlimited
Marginal propensity to consume (MPC)
Marginal utility and budget lines
Market equilibrium
Materials
Matrices for solving systems by elimination
Matrix multiplication
Mean value theorem
Measurement
Measures of central tendency
Measuring age on Earth
Measuring cost of living --inflation and the consumer price index
Measuring magnetic fields
Measuring segments
Mechanical advantage
Media
Medians and centroids
Medieval
Memory
Mergers and acquisitions
Method of undetermined coefficients
Metric system unit conversion
Midpoint and distance
Minima, maxima, inflection points and critical points
Minimalism and the land
Miscellaneous
Mixed number addition and subtraction
Mixed number multiplication and division
Mixed numbers
Mixed numbers and improper fractions
Mobius strips
Modern cryptography
Modern information theory
Modular arithmetic
Molecular orbital theory
Momentum
Monetary and fiscal policy
Money supply
Monopoly
More analytic geometry
More determinant depth
More equation practice
More fancy equations for beginners
More mathy functions
More trig examples
Mortgage-backed securities
Mortgages
Moving the decimal to multiply and divide by 10
Multi-digit multiplication
Multi-step word problems
Multiplication
Multiplication by powers of 10
Multiplying and dividing fractions
Multiplying and dividing monomials
Multiplying and dividing negative numbers
Multiplying binomials
Multiplying by 10
Multiplying decimals
Multiplying fractions
Multiplying fractions word problems
Multiplying polynomials
Multiplying whole numbers and fractions
Multistep word problems
Muscular system
Mutual funds and ETFs
NCLEX-RN competition
Naming alkanes
Naming alkanes, cycloalkanes, and bicyclic compounds
Naming alkenes
Naming amines
Naming and preparing alkynes
Naming benzene derivatives
Naming carboxylic acids
Napoleon Bonaparte
Nash equilibrium
Nationalism, Imperialism & Globalization: the good, the bad and the really, really ugly
Natural Science
Natural logarithms
Negative and fractional exponents
Negative number basics
Neo-Classicism
Nerve Regulation of the Heart
Neural cells
New and noteworthy
New operator definitions
Newton's law of gravitation
Newton's laws and equilibrium
Newton's laws of motion
Nomenclature and preparation of epoxides
Nomenclature and properties of ethers
Nomenclature of aldehydes and ketones
Non-linear systems of equations
Normal distribution
Normal force and contact force
Normal forces
Northern Renaissance
Nucleophilic Aromatic Substitution
Nucleophilicity and basicity
Null space and column space
Number patterns
Number sets
Oakland Unity
Objects
Oh, so that’s where that comes from! (the ancient Greeks, Persians, Indians, Chinese & the trade between them. Oh, and also the Romans)
Old limits tutorial
Old school equations with Sal
Old school probability (very optional)
Old school similarity
Old videos on projectile motion
Olney Charter High School (Philadelphia, PA)
One-digit division
Ongoing support & reference
Optical activity
Optimal angle for a projectile
Optimization with calculus
Orbitals and electrons
Order of operations
Orders of magnitude
Orthogonal complements
Orthogonal projections
Orthonormal bases and the Gram-Schmidt process
Other Reactions and Synthesis
Other cool stuff
Other features
Other fronts of World War I
Ottonian
Our vision
Overview and history of algebra
Overview of Chinese history 1911-1949
Overview of metabolism
Overview quiz on medieval art
Oxidation and reduction
Oxidation reduction
Parabolas
Parameterizing a surface
Parametric equations
Partial derivatives
Partial fraction expansion
Partial quotient division
Patterns in data
Paulson Bailout
Percent word problems
Percentages
Perfect competition
Performance Art: Marina Abramović
Perimeter
Perimeter and area of non-standard shapes
Perimeter and area of triangles
Periodic table, trends, and bonding
Permutations and combinations
Perpendicular bisectors
Personal bankruptcy
Personal taxes
Philip Rosedale - Founder and Chairman of Second Life
Photosynthesis
Physics
Pictographs and line graphs
Place value
Planning your implementation
Plate tectonics
Point-slope form and standard form
Poisson process
Polar coordinates
Polygons in the coordinate plane
Polynomial basics
Polynomials
Pop & After
Position vector functions and derivatives
Positive and negative exponents
Post-Impressionism
Postmodernism
Power rule
Pre-Raphaelites
Prehistoric
Preload and Afterload
Present value
Pressure Volume Loops
Price discrimination
Price elasticity
Primality test
Prime and composite numbers
Prime factorization
Prime numbers
Principles of bioenergetics
Printmaking
Probability using combinatorics
Problem solving
Process art
Product and quotient rules
Production possibilities frontier
Projectile Launcher
Proof of Stokes' theorem
Proofs of derivatives of common functions
Properties and patterns in arithmetic
Properties of the Laplace transform
Proportional relationships
Proteins
Public goods and externalities
Put and call options
Pythagorean Theorem proofs
Pythagorean theorem
Pythagorean theorem proofs
Python programming
Quadratic inequalities
Quadratic odds and ends
Quadrilaterals
Quantative easing
Quasars and galactive collisions
Radians
Radical equations
Radioactive decay
Random variables and probability distributions
Randomized algorithms
Rates
Rates for proportional relationships
Ratio word problems
Rational and irrational numbers
Rational expressions and equations
Rational functions
Rational number word problems
Ratios and proportions
Reaction rates
Reactions of alcohols
Reactions of benzene
Reactions of ketones
Reading and interpreting data
Real and nominal GDP
Real and nominal return
Realism
Rectangle area and perimeter word problems
Redox Reactions
Reduced row echelon form
Regrouping decimal numbers
Regrouping decimals
Regrouping whole numbers
Related rates
Renting vs. buying a home
Resources to share
Retirement accounts: IRAs and 401ks
Richard Branson - Chairman of the Virgin Group
Riemann sums and definite integration
Ring-opening reactions of epoxides
Rise of Hitler and the Nazis
Rise of Mussolini and Fascism
Road trip! (conquest, trade, & more conquest)
Rococo
Romanesque
Romanticism in England
Romanticism in France
Romanticism in Germany
Romanticism in Spain
Romanticism in the United States
Rounding
Rounding decimals
Rounding whole numbers
SAT Math
SN1 and SN2
SN1 vs SN2
SN1/SN2/E1/E2
Sal's old Maclaurin and Taylor series tutorial
Sal's old angle videos
Sal's old statistics videos
Sample playlists and curriculum mappings
Sampling a population
Sampling distribution
Scale drawings
Scale of earth, sun, galaxy and universe
Scale of the small and large
Scatter plots
Scavenger hunt through our site
School pilots
Scientific notation
Seismic waves and how we know Earth's structure
Separable equations
Separations and purifications
Sequences and series review
Shell method
Shorting stock
Siena
Sight (vision)
Significant figures
Simplifying complicated equations
Simplifying rational expressions
Simplifying rational expressions
Singing (and noises)
Slope
Slope of a line
Slow sock on Lubricon VI
Social structures
Solid of revolution volume
Solutions to linear equations
Solving equations and inequalities with substitution
Solving equations with distribution
Solving for a variable
Solving linear systems graphically
Solving quadratics by factoring
Solving rational equations
Solving systems graphically
Solving systems of equations for the king
Solving systems with elimination
Solving systems with elimination (addition-elimination)
Solving systems with substitution
Somatosensation
Spain
Special right triangles
Speed and velocity
Spider Bot
Spirals, Fibonacci and being a plant
Spout Bot
Spout Bot with Solder
Springs and Hooke's Law
Square roots and cube roots
Squeeze theorem
Starter multiplication and division word problems
States of matter
Stellar parallax
Stoichiometry
Stokes' theorem intuition and application
Structure in linear expressions
Subspaces and the basis for a subspace
Subtracting multi-digit numbers
Subtraction with borrowing (regrouping)
Summit Public Schools
Super Yoga plans
Super fast systems of equations
Surface integrals
Symbolism & Art Nouveau
Synthesis and cleavage of ethers
Synthesis of alcohols
Synthesis using alkynes
System for solving the King's problems
Systems of equations word problems
Systems of inequalities
Systems with three variables
Systems word problems
T.A. McCann - Founder and CEO of Gist
Tables
Take a tour of KA
Telling time
Tension
Text
Thanksgiving math
The Cold War
The Phillips Curve - Inflation and unemployment
The Protestant Reformation
The Pythagorean Theorem
The basics
The business cycle
The convolution integral
The coordinate plane
The cube root
The demand curve
The distributive property
The imaginary unit i
The postwar figure
The quadratic formula (quadratic equation)
The square root
The supply curve
The why of algebra
The world of exponents
Theories of personality
Thermo Can
Thermodynamics
Thinking about solutions to systems
Thinking about solving equations
Thinking algebraically about inequalities
Thiols and sulfides
Thomas Friedman - Author
Three core financial statements
Time scale of the cosmos
Torque, moments and angular momentum
Transformations
Transformations and matrix multiplication
Transpose of a matrix
Tree of life
Triangle angles
Triangle inequality theorem
Triangle similarity
Triangle similarity and constant slope
Triangle similarity and slope
Trigonometric identities
Trigonometric substitution
Triple integrals
Tuberculosis
Two digit addition and subtraction
Two-dimensional projectile motion
Two-step equations
Two-step word problems
Types of regions in three dimensions
Tyrol
Undefined and indeterminate answers
Understanding company statements and capital structure
Understanding fractions
Understanding whole number representations
Unemployment
Unit circle definition of trigonometric functions
Unit conversion
Unit word problems
United States history overview
Using data
Using regrouping or borrowing to subtract 3 digit numbers
Using secant line slopes to approximate tangent slope
Variables
Variables and expressions
Variance and standard deviation
Vector dot and cross products
Vectors
Vectors and scalars
Venice
Venn diagrams and adding probabilities
Venn diagrams and the addition rule
Vision for the classroom
Visualizing equivalent fractions
Visualizing graphs of functions and their derivatives
Volume
Volume and surface area
Volume of a box or rectangular prism
Waves and optics
Ways to use Khan Academy
Welcome to our virtual teacher workshop!
Western and Eastern fronts of World War I
What drives oil prices
What fractions mean
What happens when you stay put (the Neolithic revolution & early River Valley civilizations)
What is a Khan Academy classroom?
What’s God got to do with it? - a lot (Early Christianity, Byzantium, Islam, and Medieval Europe)
When people do great and really terrible things (The Renaissance, Colonialism, & the Slave Trade)
Why parties in a cartel will cheat
Word problems with units
Work and energy
Worked examples
World War I Quiz
World War I shapes the Middle East
Writing and interpreting expressions
Writing expressions
You ain’t the boss of me! Oh, maybe you are (Revolution and Modern Society)
Zach Kaplan - CEO of Inventables
u-substitution
x-intercepts and y-intercepts of linear functions
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