Northeast Arkansas Education Cooperative
Recognizing When a Rational Expression is Undefined
It only takes the denominator to be zero to make an expression undefined. A video resource makes the connection of undefined fractions to rational expressions. It points out that to determine when a rational expression is...
Northeast Arkansas Education Cooperative
Solving Inequalities
Explain how to solve single variable inequalities with an instructive video. It includes equations with coefficients represented by variables. The video specifically aligns with Common Core, making it an ideal resource to ensure...
Northeast Arkansas Education Cooperative
Scatter Plots
Show learners how to plot data to determine correlation. A data analysis video gives examples of positive, negative, and no correlation between variables. The final example plots real-life data, provides a line of best fit, and...
Northeast Arkansas Education Cooperative
Using Measure of Central Tendencies
This short but information-packed presentation begins with a thorough review of how to calculate mean, median, and mode of a given data set. What makes it a unique lesson is the follow-up example and presentation of how these measures of...
Northeast Arkansas Education Cooperative
Construct and Interpret a Cumulative Frequency Histogram
The finer points of telling the difference between cumulative and frequency histograms are laid out with clear examples for how to get from one to the other. From defining vocabulary through converting charted data to histogram form,...
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring 2
Take your class through the mechanics of simplifying algebraic fractions by factoring trinomials. Though the steps for factoring are assumed known, the process of identifying and canceling common factors are detailed with...
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring
A brief presentation with laser-like focus, this video talks young mathematicians through the mechanics of simplifying algebraic fractions by factoring trinomials. While the factoring itself is assumed to be a mastered skill, the...
Northeast Arkansas Education Cooperative
Sampling Methods and Preventing Bias
Experimental design can be both incredibly intuitive and very high-concept when first introduced to learners. This video does a great job of discussing sampling methods and bias simply, without over-reducing...
Northeast Arkansas Education Cooperative
Function Families and Their Connections Including Vertical Shift of an Absolute Value Function
One of the strongest tools an algebra learner develops is the ability to quickly and accurately graph almost any given function. Often doing this quickly and accurately requires rigid transformations to a parent function,...
Northeast Arkansas Education Cooperative
Function Families: Translations and Reflections
This comprehensive introduction to rigid transformation of functions does a fabulous job of breaking down translations and reflections into manageable concept chunks. Care is taken with horizontal translations, vertical translations,...
Northeast Arkansas Education Cooperative
Quadratic Formula
The mechanics of using the quadratic formula are clearly detailed in this example-full presentation, along with how to identify and walk through the algorithm. Step-by-step attack methods are provided with examples of several different...
Northeast Arkansas Education Cooperative
Recognizing When Radical Expressions are Undefined
Many times budding algebrists are fine when plugging specific numbers into expressions, but less certain when the range of acceptable values is undetermined. This detailed presentation helps the class move from the point value to...
Northeast Arkansas Education Cooperative
Translate Word Phrases and Sentences into Inequalities and Vice Versa
Many times, learners get frustrated because they feel like they have the tools to solve an algebra problem, but not the ability to turn the English into math. This presentation focuses solely on that skill, starting with basic algebraic...
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...
Northeast Arkansas Education Cooperative
Interpret The Rate of Change /Slope in the Context of Everyday Life
Find slope all around us and calculate the rate of change during this video that uses real-life situations. Your learners will start by creating a table to see how each change creates the pieces of slope. Plug that slope into your...
Northeast Arkansas Education Cooperative
Interpret the Rate of Change (Slope) within the Context of Everyday Life
With math all around us, your learners will see they can create an equation to model different situations. From fundraising to a cell phone plan, your mathematicians can find the starting point b, plug in the rate of...
Northeast Arkansas Education Cooperative
Functions
One in, one out is what functions are about in a video explaining the rules and qualities of these relationships. Have your learners practice with ordered pairs, tables, mapping, and graphs, deciphering whether or not those relationships...
Northeast Arkansas Education Cooperative
Interpret The Rate of Change Within the Context of Everyday Life
Rate of change isn't found only in a classroom but in everything that fluctuates. Show your learners they can find the rate of change in real-world situations with examples using time and temperature. The video starts by reviewing how to...
Northeast Arkansas Education Cooperative
Simplifying Radical Expressions
Here is a video on simplifying radical expressions where the presenter starts with simplifying simple square roots, and quickly develops into looking at more complicated problems. He covers simplifying a variable raised to a power...
Northeast Arkansas Education Cooperative
Multiplying Monomials
This video starts with the basics and shows how to simplify monomials. First, it defines what a monomial is, then gives examples of monomials, evaluates integers raised to a power, and multiplies monomials with the same base....
Northeast Arkansas Education Cooperative
Working with Exponents and Radicals When Evaluating Expressions
Take the basic concept of evaluating expressions to the next level with this video. First, the presenter stresses the importance of using the order of operations. Then he shows examples of substituting values into variable...