Flipped Math
True False Equations
Determine what makes the equation true. Learners view an instruction video on determining what values make an algebraic equation true. The pupils describe the solution set using three different methods: verbally, set notation, and...
Flipped Math
Algebraic Properties
Properly apply properties to arrive at equivalent expressions. Pupils review the main properties of equivalence with the guidance from the video. They take the knowledge from the video and apply the properties within the instruction and...
TED-Ed
Can You Solve the Giant Cat Army Riddle?
Dr. Schrodinger, the rat, has set a trap for anyone trying to destroy the growth ray he is using to create giant cats to attack the city. Viewers are challenged to escape his trap and save humanity in this rather complex math riddle.
TED-Ed
Can You Solve the Penniless Pilgrim Riddle?
The Penniless Pilgrim riddle challenges viewers to find a tax-free path through a matrix of city streets to reach a temple. The good news is that the video includes a solution for befuddled riddlers.
Mathispower4u
Determine the Area of a Shaded Region Using a Polynomial (Example)
Looking at area with a hole. Using algebraic expressions as dimensions, learners see how to calculate the area of a rectangle that contains a square hole. The instructional video shows how to create a single expression for the area of...
Mathispower4u
Evaluate a Quadratic Expression with a Negative Value (Example)
Don't feel negative about quadratic expressions. An instructional video shows viewers how to evaluate a quadratic expression when the variable has a negative value. It presents two examples for the topic and works through these examples...
Mathispower4u
Evaluate Algebraic Expressions - Advanced (Example 3)
Advance scholars' understanding of evaluating expressions. An advanced level video shows how to determine the value of algebraic expressions for given values of variables. The expressions involve multiple exponents or multiple operations.
Mathispower4u
Evaluate Basic Algebraic Expressions (Example 2)
Algebraic expressions have value; mathematicians just have to calculate it. An educational video describes how to evaluate algebraic expressions with a focus on linear and quadratic expressions with one or two variables. Pupils work...
Mathispower4u
Evaluate Basic Algebraic Expressions (Example 1)
Evaluating expressions is pretty basic. Scholars watch an informative video that shows how to evaluate basic algebraic expressions. It provides examples that illustrate how to square and cube negative values as well as apply the order of...
Mathispower4u
Evaluate Various Algebraic Expressions
Learn the value of evaluating expressions. An educational video shows viewers how to evaluate algebraic expressions for given values of a variable. The video includes a set of five worked examples for the concept.
Mathispower4u
Simplify Basic Expressions with Negative Exponents
Identifying the base is extremely important. Using five problems with negative exponents, the narrator demonstrates that knowing the base is important in simplifying algebraic expressions. The different problems use the same numbers but...
Corbett Maths
Dividing Algebraic Fractions
Do the keep, change, flip dance. The resource shows that the division of algebraic fractions follows the same rules as dividing numerical fractions. Pupils understand that if they can multiply rational expressions, they can divide...
Corbett Maths
Multiplying Algebraic Fractions
Make the complicated look relatively simple. The video shows how multiplication of algebraic fractions is easier when they factor the numerators and denominators. Pupils see which factors will cancel, or divide out, easier when writing...
Corbett Maths
Simplifying Algebraic Fractions
Simplification is about factoring. While working with rational expressions, pupils must know how to factor. The video shows how the process of finding common factors in algebraic fractions is similar to finding common factors in...
Corbett Maths
Adding Algebraic Fractions
The process requires the combination of several concepts. A video shows how individuals need several concepts to add rational expressions. Pupils must remember they need to find common denominators, combine like terms, and use the...
Corbett Maths
Dividing Algebraic Expressions
Get back to the basics to become an expert. The short video shows the basics of dividing algebraic expressions. Using several examples, the presenter reminds viewers of the rules of exponents when dividing. Pupils practice dividing...
Corbett Maths
Function Machines
It's not a time machine—it's a function machine! Using two rules, the video introduces a function machine that changes an input to an output. Pupils answer questions such as finding what is the input for a given output and what values...
Corbett Maths
Algebraic Proof
Proofs do not exist only in geometry. The video shows the class different ways that proofs appear in algebra. Pupils work through a variety of algebraic proofs involving the divisibility of an algebraic expression or whether it is even...
PBS
Math in Fencing: Distance as a Variable
Out lunge the opponent. Fencing uses math in determining distances between opponents. An installment of the Math at the Core: Ratios series shows how to use variables to write an expression to show the distance a fencer must cover to...
Mathispower4u
Simplify and Evaluate Algebraic Expressions 2
These are equivalent, too. The resource presents two expressions to simplify that require using the distributive property and/or combining like terms. After simplifying the expressions, the video shows how to evaluate the expressions to...
Mathispower4u
Simplify Algebraic Expressions (Basic)
To simplify or not to simplify, what should scholars do? Using several examples, the video works through the process of simplifying algebraic expressions. The resource restricts simplification to using the distributive property and to...
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...