x in two places 113 videos

Setting in Story
Writing Writing Terms
The importance of setting in a story.
setting time location story takes place 
Writing, Reading Decimals
PreAlgebra Decimals and Percents
Vocabulary of place value and how to read decimals

A Funny Thing Happened
AP US History AP US History Videos
Important names, dates, and places in early American history.
Discovery Westward expansion Louisiana Purchase Manifest Destiny 
Vocabulary of Quadratic Polynomials
Algebra Quadratic Equations and Functions
How to label the roots of a quadratic polynomial, solutions to a quadratic equation, and xintercepts or roots of a quadratic function.
roots x intercepts solutions excluded values zeros function 
Vocabulary of Quadratic Polynomials
Algebra 2 Quadratic Equations and Inequalities
How to label the roots of a quadratic polynomial, solutions to a quadratic equation, and xintercepts or roots of a quadratic function.
roots x intercepts solutions excluded values zeros function 
Continuity
Calculus Limits and Continuity
How to determine whether a function f(x) is continuous at a particular point x=a.
limits definition of a function continuous at a point domain of a function 

Composition of Functions
Algebra 2 Functions
How to calculate the composition of functions.
composition f(g(x)) 
Limits: A Graphical Approach
Calculus Limits and Continuity
How to determine onesided and twosided limits from the graph of a function.
one sided limits two sided limits limit does not exist piecewise functions left hand limit right hand limit graph graphical approach 
Finding an Inverse Graphically
Algebra 2 Inverse, Exponential and Logarithmic Functions
How to graph the inverse of a function using points.
finding an inverse graphically switch x and y flip over y=x 
The Discriminant
Algebra Quadratic Equations and Functions
How to calculate and interpret the discriminant of a quadratic equation.
discriminant x intercepts number of solutions 
The Reciprocal Transformation
Precalculus Polynomial and Rational Functions
How to graph the reciprocal of a linear function.
the reciprocal transformation x intercepts asymptotes 
The Definition of the Derivative
Calculus The Derivative
How to define the derivative of a function at a point x=a.
average rate of change slope secant line instantaneous rate of change tangent line limits derivative difference quotient 
The Derivative Function
Calculus The Derivative
How to define the derivative function f'(x).
derivative limits the derivative function 
Limits of Rational Functions
Precalculus Polynomial and Rational Functions
How to evaluate the limit of k/x^n as x goes to infinity (or negative infinity).
rational functions limits infinity 
Properties of Similar Polygons
Geometry Similarity
How to identify if two figures are similar.
similar figures corresponding angles congruence corresponding sides proportional 
Solving Equations  one variable term
PreAlgebra Solving Equations and Inequalities
Solving two step equations with integers

Midpoint Formula
Algebra 2 Graphs of Linear Equations
How to find the midpoint of two points.
midpoint formula 
Multiplying Polynomials
Algebra 2 Polynomials
How to multiply two binomials together.
multiplying polynomials foil binomial 
The Product Rule
Calculus Techniques of Differentiation
How to differentiate a product of two functions.
differentiation derivative formula power functions the product rule of derivatives