# complex numbers   81 videos

• #### Comparing Fractions

##### Pre-AlgebraFractions and MIxed Numbers

Comparing fractions using < or > and ordering them on the number line

• #### Graphing One Variable Inequalities

##### Pre-AlgebraSolving Equations and Inequalities

Graphing one variable inequalities on a number line

• #### Classifying and Naming

##### Pre-AlgebraPolynomials

Vocabulary of classifying polynomials by degree and number of terms

• #### Evaluating a Logarithmic Expression in terms of Known Quantities

##### Algebra 2Inverse, Exponential and Logarithmic Functions

How to break up a logarithm of a large number.

product rule of logs quotient rule of logs expand
• #### Evaluating a Logarithmic Expression in terms of Known Quantities

##### PrecalculusExponential and Logarithmic Functions

How to break up a logarithm of a large number.

product rule of logs quotient rule of logs expand
• #### SAT Writing Tips

##### SATSAT Writing
wordiness redundancy number agreement double negatives split infinitives
• #### Coin Word Problems

##### AlgebraWord Problems Using Systems of Equations

How to solve word problems about values and number of coins.

coins system of equations substitution
• #### Sum of Digits

##### AlgebraWord Problems Using Systems of Equations

How to solve a problem when asked to switch the digits of a 2-digit number.

sum digits word problem
• #### Scientific Notation

##### AlgebraExponents

How to move between scientific notation and standard notation of numbers.

power scientific notation
• #### Inductive Reasoning

##### GeometryReasoning, Diagonals, Angles and Parallel Lines

How to define inductive reasoning, and how to find numbers in a sequence.

inductive reasoning deductive reasoning patterns Fibonacci sequence.
• #### Rounding

##### Pre-AlgebraWhole Numbers

How to round whole numbers including estimation errors and real life scenarios

• #### Applications

##### Pre-AlgebraIntegers

Real word situations that involve operations on positive and negative numbers

• #### Estimating Percents

Using 1% or 10% to estimate other percents of a given number

• #### Scientific Notation

How to move between scientific notation and standard notation of numbers.

power scientific notation
• #### Solving "Greater Than" Absolute Value Inequalities

##### PrecalculusLinear Equations and Inequalities

How to solve an inequality with an absolute value greater than a number.

absolute value inequality making 2 equations union
• #### Solving "Less Than" Absolute Value Inequalities

##### PrecalculusLinear Equations and Inequalities

How to solve an inequality with an absolute value less than a number.

absolute value inequality making 2 equations intersection
• #### Solving a Quadratic Inequality using a Sign Chart

##### Algebra 2Quadratic Equations and Inequalities

How to solve a quadratic inequality using a sign chart.

sign number line sign chart less than greater than quadratic inequality
• #### Derivatives of Logarithmic Functions

##### CalculusThe Derivative

How to infer the derivative of the natural log function using a calculator investigation.

derivative formula limits derivative the number e numerical approximation of the derivative natural logarithm
• #### Strategies for the Math Section

##### PSATPSAT Prep

Get familiar with the PSAT Math section, learn the main strategies to master it and improve your PSAT test score

reading the questions choosing your own numbers using figures and diagrams plugging in answers order of difficulty
• #### Multiplying and Dividing

##### Pre-AlgebraWhole Numbers

Looking at how multiplication represents repeated addition, as well as special cases of multiplying and dividing whole numbers