Curated OER
How to Use a Number Line
Have your class watch this video to get a better understanding of adding and subtracting positive and negative numbers. In an easy to understand manner, the presenter explains how to add numbers, both negative and positive, using a...
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How Do You Solve a Decimal Inequality Using Division with Negative Numbers?
If your class is studying inequalities, consider this video. The focus is on solving a decimal inequality that has negative numbers in it. A lecturer works through an example problem, commenting on the steps and properties necessary to...
Curated OER
What's Another Definition for an Integer?
Break down integers with this video. A teacher gives a basic definition and provides several examples of integers. The examples cover numbers that are integers as well as numbers that are not integers. A concise video, this resource...
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How Do You Solve an Inequality by Multiplying by a Negative Number?
Help your learners grasp inequalities with this video. A lecturer leads viewers through solving an inequality by multiplying by a negative number, citing the multiplication property of inequality and finishing with set notation. This is...
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How Do You Solve an Inequality by Dividing by a Negative Number?
With an enthusiastic instructor who writes clear steps on a whiteboard, this video demonstrates how to solve an inequality by dividing by a negative number. What makes this video stronger is the second part of the video, in which the...
Curated OER
How Do You Graph Ordered Pairs in Each Quadrant?
Draw a graph, label your units, make a table of your given coordinates. Now plot your points, label each point as you graph it. Next identify the quadrant that each point is in and add that to your table.
Curated OER
How Do You Graph a Line If You're Given the Slope and a Single Point?
You have a slope and a given point and now you have to graph it. Begin by drawing a graph and then plotting the given point. Remember that slope is rise over run. So from the given point move the appropriate spaces to plot the next...
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What Does Positive Slope Mean?
How can two negative values create a positive slope? Rise over run, a negative divided by a negative. Watch the instructor explain just how that works.
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What Does Negative Slope Mean?
Rise over run? The instructor explains two ways that a slope can be negative. It's not as complicated as you may think. Follow along on this lesson and see for yourself.
Curated OER
Dividing Integers
Clear up the confusion surrounding division of negative numbers with this short video. Viewers will learn how to determine if the answer to an integer problem is going to be negative or positive, and they'll witness the tutor work...
Curated OER
How Do You Solve a Decimal Inequality Using Division with Negative Numbers?
If your class is studying inequalities, consider this video. The focus is on solving a decimal inequality that has negative numbers in it. A lecturer works through an example problem, commenting on the steps and properties necessary to...
Curated OER
How Do You Solve an Inequality by Dividing by a Negative Number?
With an enthusiastic instructor who writes clear steps on a whiteboard, this video demonstrates how to solve an inequality by dividing by a negative number. What makes this video stronger is the second part of the video, in which the...
Curated OER
How Do You Compare Integers Using a Number Line?
Use a number line to plot the given points to compare their value. The given numbers in this problem are both negative so remember that whichever number is furthest to the right is the larger value. Watch this short video and see how to...
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How Do You Subtract Integers Using a Number Line?
There are times when you might want to use a number line to help you visually understand what is happening mathematically. Subtracting integers might be one of those times. So take a look and see which direction you need to move on the...
Curated OER
How Do You Add Two Negative Numbers?
A very simple explanation of adding two negative numbers together. Well, it's a mathematical explanation that includes moving the negative and using absolute value. Just watch the instructor as she shows you the steps and it will make...
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How Do You Figure Out a Template for Factoring a Trinomial?
Given a trinomial to factor, figure out the signs that will be in the resulting binomials. There are three cases for the combination of signs. Check out this video, it will prove to be very helpful to know how to determine the signs...
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What's Negative Correlation?
If the y-value decreases as the x-value increases then you have a negative correlation. Meaning that the line-of-fit has a negative slope.
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How Do You Multiply and Divide Numbers with Different Signs?
After multiplying integers that have positive and/or negative signs, how is the sign of the product determined? This is a foundation skill that your pupils should know like the backs of their hands. If you need to reinforce the rules of...
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How Do You Use a Shortcut to Factor a Perfect Square Trinomial?
It's not really a shortcut but an equivalent equation. That's how these two perfect square equations work. So when you see an expression written out and it fits the perfect square of a trinomial criteria it can be rewritten in the...
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Adding Integers with the Same Sign (2)
As a follow up to his video on adding integers with the same sign, Duane created this shortcut video to make life easier. He tells learners they can ditch the number line and just add the absolute value of each number and attach the sign.
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Adding Integers with the Same Sign (1)
Duane uses a vertical number line to show learners how to add integers with the same sign. The vertical number line is an effective visual tool that will help viewers better understand exactly what happens when two positive or two...
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Adding Integers with Different Signs (2)
Boy I would have loved adding integers if I had known this short cut. Without explaining why it works Duane tells viewers that to determine your answer's sign when adding integers with different signs all they need to do is write down...
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Adding Integers with Different Signs (1)
Using that neat vertical number line, tutor Duane shows what happens when you add two integers together when they have different signs. This is a great visual tool and may help learners who have a difficult time conceptualizing this...
Curated OER
Basic Math: Lesson 6 - #10 - Subtraction of Fractions
This is a full lesson created to assist learners in subtracting mixed numbers and fractions. The instructor speaks quickly and fails to explain his thinking completely. He refers to LCD, completes problems involving negative numbers, and...