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This page provides a list of educational videos related to Variables and Unknowns. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Variables and Unknowns.
Expressions with unknown variables 2
By Khan Academy
A few more examples where Sal evaluates expressions with multiple unknown variables.
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.
Algebra Basics: What Is Algebra? - Math Antics
By Lumos Learning
This video gives an overview of Algebra and introduces the concepts of unknown values and variables. It also explains that multiplication is implicit in Algebra.
Identifying the Equation and Solution to a Two-Step Problem: 3.OA.8
By Tenmarks Amazon
Presents a two-step word problem involving one or two of the four operations. An equation is written with a variable for the unknown value.
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
Graphing - Independent Dependent Variables
By MrG Lewis
Learn how to graph independent and dependent variables in this video from Mr G Lewis
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
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.
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.
Algebra - Equations on a Balance Scale (6-EE-A-2, 6-EE-B-5, 6-EE-B-6)
By Worksheets and Walkthroughs
This video walkthrough lesson guides you through the process of using a balance scale and manipulatives as visual representations of an equation with a variable representing an unknown value. The solution is also represented as a tape diagram/model drawing. A story problem is also given to provide a meaningful context. (6-EE-A-2, 6-EE-B-5, 6-EE-B-6)
Solving systems of equations in three variables
By MathPlanetVideos
Solve the systems of equation in our example.
Linear Equations in Two Variables
By Meritnation
YouTube presents Linear Equations in Two Variables, an educational video resource on math.
Solving systems of equations in two variables
By MathPlanetVideos
Solve the system of equations: {2x−4y=0 −4x+4y=−4
Example 6: Factoring a difference of squares with two variables | Algebra II | Khan Academy
By Khan Academy
Khan Academy presents Example 2: Factoring difference of squares, an educational video resource on math.
Evaluating Expressions with Two Variables - Khan Academy
By Khan Academy
Sal Khan shows the viewer how to evaluate an expression with two variables.
Example 3: Factor a quartic binomial with two variables by taking a common factor | Khan Academy
By Khan Academy
Khan Academy presents Factor polynomials using the GCF, an educational video resource on math.