Variables and Algebraic Expressions Videos - Free Educational Videos for Students in K - 12

Array

Lumos Video Store

This page provides a list of educational videos related to Variables and Algebraic Expressions. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Variables and Algebraic Expressions.


Simplifying Radicals With Variables, Exponents, Fractions, Cube Roots - Algebra


By The Organic Chemistry Tutor

This algebra 1 & 2 video tutorial shows you how to simplify radicals with variables, fractions, and exponents that contains both square roots, cube roots, and variables such as x, y, and z. This video contains plenty of examples and practice problems.Here is a list of topics: 1. Simplifying Radical Expressions With Variables & Exponents 2. Simplifying Radicals With Fractions & Variables 3. Radicals With Square Roots & Cube Roots 4. Radical Expressions with X, Y, and Z 5. Absolute Value - Simplifying radical expressions

Qtr 1, Lesson 3: Rewriting Equations and Formulas


By Stan Lisle

A lesson describing how to rewrite algebraic expressions with multiple variables and solve for any of the variables. Problems included to test the student's understanding.

Introduction to Random Variables - Khan Academy


By Khan Academy

This video lecture series from Khan Academy on Probability includes Introduction to Probability, Permutations, Combinations, Probability using Combinations, Conditional probability, Introduction to Random Variables, Probability Density Functions, Binomial Distribution, Expected Value, Expected value of Binomial Distribution, Poisson Process, Law of Large Numbers

Expressions and variables


By MathPlanetVideos

Evaluate the expression when x=4 and y=3 5x+y2−xy

Graphing - Independent Dependent Variables


By MrG Lewis

Learn how to graph independent and dependent variables in this video from Mr G Lewis

Expressions with unknown variables


By Khan Academy

Sal solved a few examples where we need to evaluate an expression, but we don't know the individual variable values.

Expressions with unknown variables 2


By Khan Academy

A few more examples where Sal evaluates expressions with multiple unknown variables.

Expressions of Quantity (Part 1)


By Smrt English

This video introduces count and uncount/noncount nouns and presents how to use the expressions "much" and "many".

Expressions of Quantity (Part 2)


By Smrt English

This lesson presents when to use popular expressions of quantity such as "lots of, alot of, a few, a little"

Composing expressions


By MathPlanetVideos

Write an expression that describes the situation: Anna and her parents are going to the movies. Each ticket costs $8 and Anna also wants popcorn which is an additional $3. How much did they pay.

Example 3: Finding the square of a binomial with two variables | Algebra I | Khan Academy


By Khan Academy

This Khan Academy video offers more information on special products and contains a few samples with a step-by-step walkthrough on these new concepts.

Example 6: Subtracting polynomials with two variables | Algebra I | Khan Academy


By Khan Academy

Example 6: Subtracting polynomials with two variables | Algebra I | Khan Academy

Example 3: Finding the square of a binomial with two variables | Algebra I | Khan Academy


By Khan Academy

This Khan Academy video offers more information on special products and contains a few samples with a step-by-step walkthrough on these new concepts.

Independent and Dependent Variables - YourTeacher.com


By yourteachermathhelp

This video briefly explains the difference between an independent and dependent variable using the example of the length of your hair based on how many days it has been since you got a hair cut.

Mean and Expected Value of Discrete Random Variables


By statslectures

This video summarizes for us in less than two minutes how to find the expected value for a discrete random variable. In order to apply this to empirical data, form a histogram from your data and use that to determine relative frequencies.

Evaluating Expressions with Two Variables - Khan Academy


By Khan Academy

Sal Khan shows the viewer how to evaluate an expression with two variables.

Simplify expressions


By MathPlanetVideos

How can we rewrite 320,2?

Evaluate expressions


By MathPlanetVideos

Evaluate the following expression for x = 2, y = 5 and z = 4 4x+(7−z)−6y