Virtual Nerd
How Do You Use an Equation to Find a Part of a Whole?
Watch the instructor change a percent into a decimal and multiply it by the original number to determine the percent. One idea would be to embed this video in a PowerPoint presentation, or assign it as homework with your flipped...
Virtual Nerd
How Do You Find the Intersection of Percent Data by Using a Venn Diagram?
When you first read this word problem it seems pretty daunting. The instructor explains how to identify the variables, how to convert percentage to whole numbers, and how to set up the problem and solve it. She uses a Venn diagram as a...
Curated OER
How Do You Use an Equation to Find a Whole?
The teacher shows how to break down this problem by first identifying all the terms. After changing the percent to a decimal, she shows how to set up the equation using the terms. Lastly, she solves the equation using the division...
Mathispower4u
Writing Algebraic Expressions Involving Percents of An Amount
Perhaps you want to learn about percents in algebraic expressions? Young mathematicians view an informative video that teaches how to write algebraic expressions. These problems all involve contexts involving percents, such as tips,...
Khan Academy
MTEL Math Practice Test: 41-45
Finishing up this practice MTEL Math test, Sal guides the viewer through questions 41-45, explaining his thought processes. The problem set in this video features skills such as median and mean, percentages, and probability, all of which...
Khan Academy
MTEL Math Practice Test: 5-8
In this video, covering questions 5-8, Sal demonstrates test-taking skills (reading a question properly, analyzing all possible choices) and pre-algebra-level skills. He guides viewers through problems involving simplifying expressions,...
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
What's a Percent Proportion?
Here's a quick look at percentages as proportions. Percentages really are looking at numbers as a part of a whole, so it makes sense to look at it as a proportion. And how do you write proportion? You write proportions like a fraction,...
Curated OER
What is the Percent Equation?
What number is 40% of 30? Learn the formula and be able to figure out all of the percent problems. The instructor demonstrates the basic formula. Then she shows how and where to plug in the numbers according to what the problem is asking...
Curated OER
How Do You Figure Out a Percent of Change?
First, identify the parts of the word problem. Next, identify the variable, decide what formula to use, figure out the quantities, insert the quantities into the equation, and now solve. There are many parts to solving this word problem...
Curated OER
What's a Percent of Change?
Learners who view this video will gain a stronger understanding of percent of change. This tutorial provides a formula and a sample problem. As the tutor completes the example, she explains and clarifies each step that she takes to find...
Curated OER
What is the Formula for Simple Interest?
I=prt is the formula for interest. What does each variable represent? I =interest, p =amount originally invested, r =rate of interest (usually in percent), t =time. Now all you have to do is plug in the numbers and do the calculations.
Curated OER
How Do You Figure Out Sales Tax?
Sales tax always increases the price of your purchases. How can you figure out how much you'll be paying in full? Teach your class how to figure out their total cost, including sales tax, with this video. Using an example of a pair of...
Curated OER
How Do You Figure Out the Price of a Marked Up Item?
Inflation and higher fuel costs means airplane tickets will cost more to the consumer. So here is a word problem that presents a real-world situation. Figure out the total price for an airplane ticket that has increased by 30% from the...
Curated OER
How Do You Use a Proportion to Find What Percent a Part of a Whole?
Percentages, parts, whole, how do these pieces fit together to solve a percent problem? Follow along as the instructor shows how to set this up as a proportion problem in order to solve it.
Curated OER
How Do You Turn a Percent into a Decimal?
Remember how to convert percentages to decimals? No? Move the decimal to the right? Move the decimal to the left? Need a quick review? Then watch this video.
Curated OER
How Do You Put Fractions, Decimals, and Percents in Order?
A series of fractions, decimal numbers, and percentages that have to be put in some order. Many young mathematicians skip problems like this because they have to do some converting and if long division is involved many definitely skip...
Curated OER
How Do You Turn a Percent Into a Fraction?
Change decimals to percent, fractions to decimals, percentages to fractions, etc. Remember how to do all of these conversions? It gets so confusing. Move the decimal to the right? Make it a fraction over 100? Multiply by? Oh my! So watch...
Curated OER
How Do You Use the Formula for Simple Interest?
I=prt is the formula for simple interest. What does each variable represent? I =interest, p =amount originally invested, r =rate of interest (usually in percent), t =time. Now all you have to do is plug in the numbers and do the...
Curated OER
Finding the Whole from a Percent
He draws, problem solves, and uses proportions to show how to determine how to find a whole from a percent. Good problem solving strategies are at work in this video on percent. This is a good video for learners with a basic...
Curated OER
Changing Percents into Fractions
Find out what a percent is, how it relates to fractions, and how to change a percent into a fraction. Viewers are shown three different examples where 100 becomes the denominator and the newly formed fraction is reduced. This clip could...
Curated OER
Changing Fractions into Percents
While this method only works on certain fractions, it does help learners see the relationship between fractions and percentages. The tutor works through three example problems where he simply changes the denominator to 100 and then...
Curated OER
Changing Decimals into Percents
Apparently all you need to know when converting a decimal into a percent, is that the decimal moves over two places. Watch how tutor Duane simply makes the decimal point jump in order to convert a decimal into a percent.
Virtual Nerd
How Do You Solve a More Complicated Interest Problem?
This word problem on simple interest has a bit of a twist. When you read this word problem it boggles the mind. I know, it boggled mine. But never fear, the instructor takes you through this seemingly complicated interest problem...