Mathispower4u
Write and Evaluate a Variable Expression for Total Cost (ax+b)
It's just the cost of the game. Using a two-part example, the presenter writes an expression to determine the amount friends spend to attend a game. The video shows the total amount they spend when given the cost of each ticket.
Mathispower4u
Write and Simplify a Variable Expression for Age (ax+b)
Age is just a number. The resource develops a multi-step expression to represent a person's age. Using the video, the presenter creates expressions for the age of four different people that build upon each other. The final age requires...
Mathispower4u
Writing Basic Algebraic Expressions (Example 2)
Just how much farther? A helpful video provides an example in determining an algebraic expression involving distance traveled. Graphics provide an illustration to demonstrate how to find the remaining distance to travel given a known...
PBS
Real-Life Math | Astrobiologist
Is there advanced life beyond Earth? Perhaps, but there's definitely advanced math in the universe. A real-life astrobiologist explains how she uses math in her job and describes complex systems research in a short video. Pupils...
Anywhere Math
Algebraic Expressions (Advanced)
Here's everything you need to know about algebraic expressions in 10 minutes or less! From an introduction to vocabulary to simplifying with the distributive property, the video lesson has a little bit of everything related to...
Mathispower4u
Writing Variable Expressions (Examples)
Variables are the name of the game. The video instructor explains the importance of defining a variable and then models how to write an expression. He reviews three different problem scenarios and then builds expressions to model each...
Mathispower4u
Write Algebraic Expressions from Statements: Form ax+b and a(x+b)
Write an expression from an expression, verbal to algebraic. A quick video lesson gives pointers on how to write algebraic expressions from words. Stressing important vocabulary and order of the expression help to develop an...
Mathispower4u
Write Basic Expressions from Words Modeling Situations
Writing expressions is a basic skill of algebra—but it's a skill that causes scholars to struggle. A thorough video provides examples and explanations to help individuals understand the process. From defining the variable to representing...
Mathispower4u
Writing Basic Algebraic Expressions (Example 1)
Turning words into symbols, a powerful application of mathematics. A video lesson explains how to rewrite a problem-solving question with expressions. The instructor emphasizes the need to define variables.
FuseSchool
Expressions, Equations, Formulae and Identities
Get a grasp on how to use variables in algebra. The resource provides a description of the algebraic structures that use variables. The video introduces expressions, equations, formulas, and identities.
Flocabulary
Flocabulary - Order of Operations - PEMDAS
This educational hip-hop song teaches the Order of Operations when evaluating expressions. This is a great resource to introduce and/or review order of operations in the classroom.
Krista King Math
Distance, Rate and Time
Explore the use of formulas to problem solve with a video example that uses the distance formula to find a speed and then uses the speed to determine a time. The one example shows the different applications of the formula.
Curated OER
Study Jams! Creating Equations from Word Problems
Word problems are full of information waiting to be deciphered. This animated video explains how to look for the important parts and how to translate those word cues into the correct signs. Go through a problem from start to finish and...
Virtual Nerd
How Do You Plug Variables into an Algebraic Expression?
The instructor demonstrates how to plug-in given variables to rewrite an algebraic expression as a numerical expression. Follow the order of operation rules to simplify the numerical expression once you have plugged in those given values.
Krista King Math
Simple Equations with Subscripts
Examine formulas that utilize subscripts with a video tutorial that explains the process of substitution within a formula and then solving for an unknown. The instructor makes a connection between the formula that uses subscripts and one...
Krista King Math
Evaluating Expressions
Viewers examine the steps of evaluating expressions by substituting variable values with a video that shows two examples that include parentheses within the expressions. Each example incorporates negative integer practice.
Math TV
Math tv.com: Simplifying Expressions: With Numbers Only
Learn how to use order of operations to simplify expressions. Several videos, featuring a math teacher and students, offer step-by-step instruction on how to simplify expressions that only involve numbers.
Khan Academy
Khan Academy: Algebra: Evaluating Exponential Expressions 3
Video evaluating an exponential expression using the order of operations. Includes negative exponents. [4:26]
Khan Academy
Khan Academy: Algebra: Evaluating Exponential Expressions 2
Video evaluating an exponential expression using the order of operations. Includes a zero exponent. [3:01]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Order of Operations
This video demonstrates the order of operations in a numerical expression. Practice problems are available. [9:40]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Order of Operations 1
This video explains the order of operations with exponents and negative numbers. Practice problems are available. [4:36]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: More Complicated Order of Operations
This video explores more advanced order of operations problems in numerical expressions. Practice problems are available. [9:40]
Khan Academy
Khan Academy: Algebra: Evaluating Exponential Expressions
Video evaluating an exponential expression using the order of operations. [2:41]
Khan Academy
Khan Academy: Algebra: Variable Expressions
Video shows how to simplify expressions showing multiplication and how to write products with variables without multiplication signs. Also shows how to evaluate expressions by substituting in specific variable values. [12:26]