Krista King Math
Addition and Subtraction of Rational Expressions
A rational expression is a fraction where the denominator and/or the numerator is a polynomial. The resource presents rational expressions and how to add and subtract them. Additionally, the video connects the addition and subtraction of...
Krista King Math
Complex Fractions
Complex fractions are fractions divided by fractions—complicated, right? The video introduces the class to algebraic complex fractions. With the introduction to variables in the denominator, it is important make sure the denominator is...
Krista King Math
Like Terms, Multiplication and Division
Introduce the class to simplifying algebraic expression using multiplication and division. Showing the connection of the rules for exponents between numerical expressions and algebraic expressions, the video works several examples...
Krista King Math
Like Terms, Addition and Subtraction
It is not good enough to have the same variable, they must have the same exponents too. The video introduces the class to like terms, while giving the definition of like terms and providing examples of combining like terms through addition.
Krista King Math
Distributive Property, Binomial Multiplication
The distributive property and FOIL are the same when it comes to binomial multiplication. The video demonstrates binomial multiplication using the distributive property. The presenter shows the general case and provides two...
Krista King Math
Distributive Property, Fractions
Does the distributive property work the same with fractions? The short video provides examples of the distributive property using algebraic fractions. The resource provides two examples of distributing fractions over sums also involving...
Krista King Math
Commutative Property
Connect the commutative property to commuting. The quick video shows how to use the commutative property to write sums and products in a different way. It provides examples to show that the property only works for addition and...
Krista King Math
Associative Property
It does not matter how you group numbers in addition and subtraction. The short video provides the definition for the associative property. It includes examples to show the associative property holds true for addition and multiplication.
Brightstorm
Greatest Common Factors - Concept
Introduce your class to the greatest factor on earth. The group of videos introduces factoring polynomials by finding the greatest common factor (GCF). They connect finding the GCF of the terms in a polynomial to finding the...
Brightstorm
Dilations of Quadratic Graphs - Concept
Help learners recognize the characteristics of a quadratic graph and how changes affect them. An informative video uses a graphing calculator in order to find out what happens when the leading coefficient of a quadratic...
Brightstorm
Exploring Quadratic Graphs - Concept
Show your class how to use properties to make graphing easier with a resource that explores the graphs of quadratics. Using tables to determine the points to graph, pupils discover the symmetry of parabolas in...
Brightstorm
Simplifying Radical Expressions - Concept
Radical, dude! The resource provides an explanation on how to simplify radical expressions. It makes clear that radical expressions are ones that are strictly numerical but also are algebraic expressions. One of the problem sets...
Scholastic
Study Jams! Classify Quadrilaterals
Face the vertex of two-dimensional shapes and discover what each figure requires as part of its classification. With one shape per slide, learners see what makes each shape special and compare it to others with similar qualities.
Welch Labs
Imaginary Numbers Are Real (Part 9: Closure)
The last video in a series about imaginary numbers demonstrates the need for complex numbers. Math pupils learn that they need to include the square root of negative one, the building block of the complex...
Welch Labs
Imaginary Numbers Are Real (Part 5: Numbers are Two Dimensional)
If the square root of negative one exists, where is it on the number line? A math video presents a geometric representation of complex numbers and the complex plane, and then compares it to the geometric representation of real...
Welch Labs
Imaginary Numbers Are Real (Part 3: Cardan's Problem)
Were complex numbers discovered or invented? A video presentation makes the case for the discovery of square roots of negative one. In order for complex numbers to be real, then they must behave like other numbers, which they do in terms...
Welch Labs
Imaginary Numbers Are Real (Part 2: A Little History)
In some cases, a square root of a negative number must exist in order to determine the roots of a cubic equation. An educational presentation provides a specific example of a cubic with a known root to have an understanding of a...
Northeast Arkansas Education Cooperative
Multiplying Binomials Using the Distributive Property
Where many multiplying binomial lessons introduce the tool of FOIL and move on, this video presentation really delves into the how's and why's of the distributive property. Careful treatment of distribution and explicitly written out...
Northeast Arkansas Education Cooperative
Multiplying Polynomials
Without ever relying on the FOIL trick, this presentation carefully walks young algebrists through multiplying binomials by a monomial and by each other. Examples start easy, but move into complicated pairings of coefficients, positives...
Northeast Arkansas Education Cooperative
Polynomial Operations
This overview of polynomial operations does a solid job of summarizing how a mathematician attacks adding, subtracting, and multiplying polynomials. With particular emphasis on combining like terms and when exponents do and do not...
Northeast Arkansas Education Cooperative
Factoring Trinomials by Using the Punnett Square
Factoring is one of the first places in math that a young algebrist runs into multiple ways to work a problem. For the more concrete learner who needs a visual structure for problem solving, this presentation of factoring using a Punnett...
Educreations
Using the Zero Product Property to Solve Quadratic Functions
The last step of solving a quadratic factoring problem is often the stumbling block for algebra learners. Setting each factor equal to zero and solving the mini-equations isn't an intuitive process to learners new to the zero...
Educreations
Natural Log Function-Integration
One of the strongest tools in integration is u-substitution, particularly when working with natural logs. In this step-by-step video presentation, a pleasant-voiced instructor walks through a number of integration problems. She...
TED-Ed
The Law of Conservation of Mass
This short video simply explains the Conservation of Mass with graphics that show the atoms being conserved in pictures of balanced equations. The connection between mass and energy is explained and Einstein's energy equation is mentioned.