Crash Course
Unit Conversion and Significant Figures
Science is full of big numbers, each of which can be several digits long. Learn how to determine the appropriate amount of numbers to display in answers as well as how to shorten those big numbers down to only a few and still display the...
Curated OER
How Do You Solve a Scale Model Problem Using a Scale Factor?
Scale drawings are used to represent many things. Scales are used all the time on maps, and in architectural drawings. Watch this video as the instructor illustrates a simple drawing of a blueprint to represent the footage of an actual...
Curated OER
How Do You Use Dimensional Analysis to Convert Units on Both Parts of a Rate?
The video just before this lesson showed how to do unit analysis and rate conversions. This lesson also shows conversion of unit rates, feet, miles, seconds, hours. So pay attention and learn how to figure out how many feet per second...
Curated OER
How Do You Add Integers Using a Number Line?
Confused about adding integers? Use a number line to help you get a visual on which way to move according to the sign of the numbers. Negative means you move left on the number line and then of course positive numbers mean you move to...
Curated OER
What is the Y-Axis?
Just a simple straightforward definition and example of what constitutes the y-axis.
Curated OER
What is the X-Axis?
Just a simple straightforward definition and example of what constitutes the x-axis.
Curated OER
How Do You Plot Points in the Coordinate Plane?
So you have an ordered pair and you want to graph it. Just remember that the first value is plotted along the x-axis and the second value in the pair is plotted along the y-axis. So count left or right, then up or down and you have...
Curated OER
How Do You Graph Points in the Coordinate Plane?
So you have an ordered pair and you want to graph it. Just remember that the first value is plotted along the x-axis and the second value in the pair is plotted along the y-axis. So count left or right, then up or down and you have...
Curated OER
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...