Algebra

Length: 10 minutes
Description: Learn more: http://www.khanacademy.org/video?v=kpC ...

The Beauty of Algebra
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=_LD ...

Origins of Algebra
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=ZOY ...

Abstract-ness
Length: 11 minutes
Description: Learn more: http://www.khanacademy.org/video?v=N4n ...

Descartes and Cartesian Coordinates
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=vDq ...

Variables Expressions and Equations
Length: 11 minutes
Description: Learn more: http://www.khanacademy.org/video?v=9Ek ...

Simple Equations
Length: 8 minutes
Description: Learn more: http://www.khanacademy.org/video?v=XoE ...

Equations 2
Length: 8 minutes
Description: Learn more: http://www.khanacademy.org/video?v=f15 ...

Equations 3
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=9IU ...

Algebra: Linear Equations 4
Length: 6 minutes
Description: Solving linear inequalities.

Algebra: Solving Inequalities
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=2Ur ...

Algebra: graphing lines 1
Length: 8 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Nhn ...

Algebra: Slope and Y-intercept intuition
Length: 8 minutes
Description: Learn more: http://www.khanacademy.org/video?v=hXP ...

Algebra: Slope
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Kk9 ...

Algebra: Slope 2
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=8Xf ...

Algebra: Slope 3
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=gvw ...

Algebra: Equation of a line
Length: 5 minutes
Description: Learn more: http://www.khanacademy.org/video?v=8sz ...

Slope and Y-intercept Intuition
Length: 8 minutes
Description: Learn more: http://www.khanacademy.org/video?v=9VZ ...

Averages
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=W25 ...

Integer sums
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=_Sp ...

Taking percentages
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=X2j ...

Growing by a percentage
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=d1o ...

Another Percent Word Problem
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=4oe ...

More percent problems
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=nok ...

systems of equations
Length: 14 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Hpd ...

Introduction to Ratios (new HD version)
Length: 5 minutes
Description: Learn more: http://www.khanacademy.org/video?v=ITV ...

Ratio problem with basic algebra (new HD)
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=ItA ...

More advanced ratio problem--with Algebra (HD version)
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=-xy ...

Alternate Solution to Ratio Problem (HD Version)
Length: 7 minutes
Description: Basic ratio problems. (from KhanAcademy.org)

Introduction to Ratios
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=PAS ...

Advanced ratio problems
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=bAU ...

Age word problems 1
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=pPq ...

Age word problems 2
Length: 4 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Dpl ...

Age word problems 3
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Sc0 ...

Level 1 multiplying expressions
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=N30 ...

Solving a quadratic by factoring
Length: 5 minutes
Description: Learn more: http://www.khanacademy.org/video?v=ysV ...

Introduction to i and Imaginary Numbers
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Qiw ...

Calculating i Raised to Arbitrary Exponents
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=rYG ...

i as the Principal Root of -1 (a little technical)
Length: 10 minutes
Description: Learn more: http://www.khanacademy.org/video?v=kpy ...

Complex Numbers (part 1)
Length: 8 minutes
Description: Learn more: http://www.khanacademy.org/video?v=bPq ...

Complex Numbers (part 2)
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=IWi ...

Introduction to the quadratic equation
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=y19 ...

Quadratic Equation part 2
Length: 13 minutes
Description: Learn more: http://www.khanacademy.org/video?v=gzm ...

Completing the square
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=mDm ...

Quadratic Formula (proof)
Length: 9 minutes
Description: Solving quadratic inequalities using factoring

Quadratic Inequalities
Length: 9 minutes
Description: How to solve a quadratic inequality. Visual intui ...

Quadratic Inequalities (Visual Explanation)
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Vho ...

Introduction to functions
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=XEb ...

Functions Part 2
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=5fc ...

Functions (Part III)
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=rbt ...

Functions (part 4)
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=U-k ...

Domain of a function
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=FP2 ...

Proof: log a + log b = log ab
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=yEA ...

Proof: A(log B) = log (B^A), log A - log B = log (A/B)
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=cKO ...

Proof: log_a (B) = (log_x (B))/(log_x (A))
Length: 10 minutes
Description: Learn more: http://www.khanacademy.org/video?v=4u8 ...

Algebraic Long Division
Length: 10 minutes
Description: Learn more: http://www.khanacademy.org/video?v=0A7 ...

Introduction to Conic Sections
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=6r1 ...

Conic Sections: Intro to Circles
Length: 14 minutes
Description: Learn more: http://www.khanacademy.org/video?v=lvA ...

Conic Sections: Intro to Ellipses
Length: 13 minutes
Description: Learn more: http://www.khanacademy.org/video?v=pzS ...

Conic Sections: Intro to Hyperbolas
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=hl5 ...

Conic Sections: Hyperbolas 2
Length: 10 minutes
Description: Learn more: http://www.khanacademy.org/video?v=lGQ ...

Conic Sections: Hyperbolas 3
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=LSJ ...

Identifying Conics 1
Length: 11 minutes
Description: Learn more: http://www.khanacademy.org/video?v=cvA ...

Identifying Conics 2
Length: 11 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Dru ...

Conic Identification 3
Length: 13 minutes
Description: Learn more: http://www.khanacademy.org/video?v=QR2 ...

Foci of an Ellipse
Length: 15 minutes
Description: Learn more: http://www.khanacademy.org/video?v=S0F ...

Foci of a Hyperbola
Length: 14 minutes
Description: Learn more: http://www.khanacademy.org/video?v=HPR ...

Proof: Hyperbola Foci
Length: 11 minutes
Description: Learn more: http://www.khanacademy.org/video?v=S-X ...

Partial Fraction Expansion 1
Length: 13 minutes
Description: Learn more: http://www.khanacademy.org/video?v=6Fr ...

Partial Fraction Expansion 2
Length: 10 minutes
Description: Learn more: http://www.khanacademy.org/video?v=A52 ...

Partial Fraction Expansion 3
Length: 14 minutes
Description: Learn more: http://www.khanacademy.org/video?v=ZJf ...

Parabola Focus and Directrix 1
Length: 18 minutes
Description: Learn more: http://www.khanacademy.org/video?v=1Jm ...

Focus and Directrix of a Parabola 2
Length: 5 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Nx4 ...

Two Passing Bicycles Word Problem
Length: 5 minutes
Description: Learn more: http://www.khanacademy.org/video?v=P03 ...

Passed Bike Word Problem
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=qLL ...

Passing Trains
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=LYW ...

Overtaking Word Problem
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=uA3 ...

Early Train Word Problem
Length: 8 minutes
Description: Learn more: http://www.khanacademy.org/video?v=IPJ ...

Officer on Horseback
Length: 11 minutes
Description: Two ways to solve a rational inequality (or an ine ...

Rational Inequalities
Length: 13 minutes
Description: Learn more: http://www.khanacademy.org/video?v=2Rn ...

Rational Inequalities 2
Length: 16 minutes
Description: Learn more: http://www.khanacademy.org/video?v=hyp ...

Interesting Polynomial Coefficient Problem
Length: 17 minutes
Description: Figuring out the formula for fixed mortgage paymen ...

Geometric series sum to figure out mortgage payments
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=W84 ...

Introduction to Function Inverses
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=wSi ...

Function Inverse Example 1
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=aey ...

Function Inverses Example 2
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Bq9 ...

Function Inverses Example 3
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=92U ...

Direct and Inverse Variation
Length: 7 minutes
Description: Learn more: http://www.khanacademy.org/video?v=3_D ...

Recognizing Direct and Inverse Variation
Length: 12 minutes
Description: Learn more: http://www.khanacademy.org/video?v=8Vg ...

Recognizing Odd and Even Functions
Length: 4 minutes
Description: Learn more: http://www.khanacademy.org/video?v=jFa ...

Connection between even and odd numbers and functions
Length: 6 minutes
Description: Learn more: http://www.khanacademy.org/video?v=ND- ...

New Operator Definitions
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=wbl ...

Proof by Induction
Length: 3 minutes
Description: Another way to prove the expression for the sum of ...

Alternate Proof to Induction for Integer Sum
Length: 5 minutes
Description: Learn more: http://www.khanacademy.org/video?v=96Z ...

Writing Proportions
Length: 4 minutes
Description: Learn more: http://www.khanacademy.org/video?v=FPN ...

Coverting Repeating Decimals to Fractions 1
Length: 9 minutes
Description: Learn more: http://www.khanacademy.org/video?v=Ihw ...

Coverting Repeating Decimals to Fractions 2