common errors 49 videos

Adding and Subtracting Rational Expression
Algebra Rational Expressions and Functions
How to add or subtract rational expressions.
common denominator excluded value 
Solving Rational Equations with Unlike Denominators
Algebra Rational Expressions and Functions
How to solve rational equations with unlike denominators.
common denominator excluded value 
Unit System
Physics Introduction to Physics
The definition of the unit system and common prefixes.
unit system unit prefix deka hecto kilo 
Adaptive Radiation
Biology Evolution
The fast evolution of species with a common ancestor.
adaptive variation 
Rounding
PreAlgebra Whole Numbers
How to round whole numbers including estimation errors and real life scenarios

Solving Equations with fractions and decimals by "Clearing"
PreAlgebra Solving Equations and Inequalities
Solving equations with fractions by multiplying by the least common multiple

Volume and Surface Area
PreAlgebra Introductory Geometry
Vocabulary and formulas for surface area and volume of common solids

Factoring: Special Cases Part II
Algebra Factoring
How to factor a third degree polynomial by grouping.
factoring by grouping greatest common factor binomial 
Solving Rational Equations with Like Denominators
Algebra Rational Expressions and Functions
How to solve rational equations by clearing the denominator.
clearing the denominator common denominator excluded value 
Nouns
Grammar Parts of Speech
The different types of nouns and how to use them.
nouns common proper concrete abstract collective compound 
Campaigns and Elections
AP US Government AP US Government Videos
How are candidates chosen to run for office? In what ways could the election process be reformed?
Common backgrounds of recent presidents the electoral college 
Arithmetic Sequences
Algebra 2 Sequences and Series
How to find the general term of an arithmetic sequence.
arithmetic sequence common difference general term 
Arithmetic Sequences
Precalculus Sequences and Series
How to find the general term of an arithmetic sequence.
arithmetic sequence common difference general term 
Simple Substitutions
Calculus Antiderivatives and Differential Equations
How to use the method of substitution to avoid common integration mistakes.
antidifferentiation method of substitution change of variables derivatives differential 
Graphs with Holes
Precalculus Polynomial and Rational Functions
How to graph a rational function when there is a common factor in the numerator and denominator
rational functions factors holes 
Factoring Trinomials, a is not 1
Algebra Factoring
How to factor trinomials when the leading coefficient is not one.
ax^2 + bx + c greatest common factor FOIL 
Adding and Subtracting Rational Expressions
Algebra 2 Rational Expressions and Functions
How to add and subtract rational expressions.
rational expressions adding subtracting lcd least common denominator factoring