Curated OER
What's a Reciprocal?
A reciprocal number is the inverse of a given value so that when multiplied the product is one. This can be done with whole number, integers, fractions, and variables. There is only one exception to this rule. Can you think what that...
Curated OER
What's the Power of a Quotient Rule?
What's the definition of the power of a quotient rule? You have a fraction that has variables and exponents in the numerator and the denominator, and the whole thing is to a power. Oh my! Don't cry! You can do this. Once you see the rule...
Curated OER
How Do You Compare Fractions by Converting to Decimals?
Two fractions with unlike denominators. Compare and figure out which one is greater. There are a couple of ways to do this. This time change the fractions to decimals to compare. Once the values are found, they can also be plotted on a...
Flipped Math
Solve Inequalities
One solves inequalities just like equations ... well, almost. Pupils watch a video lecture on solving linear inequalities. They practice solving inequalities, check their answers with the video, and continue to practice the concept with...
Curated OER
How Do You Multiply Decimals?
Find the product of numbers that have decimals. First, ignore the decimals and multiply the integers. Second, count the place values of the decimals for each value given. Third, add the values together. Fourth, place the decimal in the...
Curated OER
How Do You Use Multiplication With Positive Numbers to Solve an Inequality Problem?
Broken lights at the skating rink? Are there enough not broken to be able to see well enough to skate? Set up this real-world word problem and find the total number of lights in the skating rink. Two given values and one variable. Solve...
Curated OER
What's a Rational Number?
A few examples of numbers, whole, mixed fraction, and decimal, that can be written in fraction form to prove they are rational numbers.
Curated OER
Law of Exponents 1
The laws of exponents are explained in this video. Topics include raising something to the zero power, rewriting an expression that has a negative number as an exponent, multiplying powers with the same base, raising a power to a power,...
Curated OER
What's the Order of Operations?
Expressions and equations must be worked out in a specific order or the solution will be incorrect. This order of operations has been referred to in several ways, some have called it PEMDAS. Others refer to the order as: group, powers,...
Curated OER
What is the Mean of a Data Set?
Average, mean, average, mean. They are the same thing. So just use the formula for finding the average of a set of numbers to get the mean. Add up the value of the terms and then divide by the number of terms in the data set. There's the...
Curated OER
How Do You Put Fractions and Decimals in Order?
Many young mathematicians skip problems like this because they just don't want to do the work to figure it out. A series of fractions and decimal numbers that they have to put in some order. So they have to do some converting and if long...
Curated OER
How Do You Figure Out the Sign of a Product or Quotient?
There are many ways to determine the sign of products and quotients of numbers that are multiplied or divided. Watch this video as the instructor illustrates a few ways to determine and check whether the solution is positive or negative.
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...
Curated OER
What's the Multiplication Property of Inequality?
Applying the multiplication property of inequality is just like working with linear equations. What is done on one side of the equation needs to be done on the other side of the equation. So this rule can be applied to inequalities. In...
Curated OER
How Do You Solve an Inequality Where You're Multiplying Positive Fractions?
Provide this video as additional instruction on how to solve inequalities when you need to multiply positive fractions. The focus of this video is on how to use the multiplication property of inequalities correctly. The lecturer explains...
Curated OER
What are Multiplicative Inverses?
How can two numbers be multiplied to get a product of one? Why is this even important? One reason this is an important skill has to do with getting rid of denominators. So learn about multiplicative inverses in this video.
Curated OER
How Do You Solve an Inequality Where You're Multiplying Negative Fractions?
Examine the multiplication property of inequality with this video. An instructor goes through a problem, detailing how to solve an inequality when you need to multiply negative fractions. She defines reciprocal and puts the final...
Curated OER
How Do You Solve an Inequality by Multiplying by a Positive Number?
Instruct your pupils on solving inequalities by multiplying by positive numbers with this video. The video presents how to do just this in step-by-step fashion. A straightforward video, this could be used to supplement your lesson during...
Curated OER
What are the Inverse Properties of Addition and Multiplication?
The instructor demonstrates that when you add the opposite value of a given number to that number you will always get zero. Then she shows how multiplying by the inverse of any number except zero will equal 1.
Curated OER
What's a Numerator and What's A Denominator?
Show your class how to find the numerator and the denominator of a fraction with this video! The video includes a brief explanation and a trick for remembering which is on the top, and which is one the bottom. A great way to help your...
Curated OER
What are the Trigonometric Reciprocal Identities?
By using the trigonometric ratios in a right triangle, the instructor derives definitions for cosecant, secant, and cotangent.
Curated OER
How Do You Figure Out Whether a Percent of Change is an Increase or a Decrease?
Another word problem to figure out. Well, first off you are trying to figure out the percent of something and this means your formula will be a proportional equivalent. Once you have the known terms in the correct places you can figure...
Curated OER
Adding Fractions with Different Signs
Bring interest to your lesson on adding fractions with different signs by using this Khan Academy video. Sal employs a number line to clearly explain how he adds multiple fractions with different signs. This resource could be used as an...
Curated OER
How Do You Solve an Inequality Where You're Multiplying Positive Fractions?
Provide this video as additional instruction on how to solve inequalities when you need to multiply positive fractions. The focus of this video is on how to use the multiplication property of inequalities correctly. The lecturer explains...
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