Brian McLogan
Learn how to determine the percent price decrease between two values
👉 Learn how to solve problems using percents. When solving problems with percents we will either convert the percents to decimal form or use proportions to solve. We will look to solve for the percent of change, the original price,...
Brian McLogan
How to determine the percent price increase between two values
👉 Learn how to solve problems using percents. When solving problems with percents we will either convert the percents to decimal form or use proportions to solve. We will look to solve for the percent of change, the original price,...
Curated Video
Computing Successive Percentages: Proportions and Equations
In this video, we look at an example of calculating the final price of a computer that was on sale for 30% off, with an additional 15% discount from a coupon and a 7.25% tax rate. The teacher emphasizes the importance of understanding...
Curated Video
Calculating a Percentage of a Whole Number: Solving 80% of 115
This video shows the process for solving the problem presented in SATs 2022 Paper 1 Q30, which involves calculating a percentage of a whole number. Students will learn how to partition a percent in order to make calculating the result a...
Curated Video
Calculating a Percentage of a Whole Number: Solving 2% of 3,000
This video shows the process for solving the problem presented in SATs 2022 Paper 1 Q28, which involves calculating a percentage of a whole number. Students will learn how to partition a percent in order to make calculating the result a...
Curated Video
Calculating a Percentage of a Whole Number: Solving 15% of 3,200
This video shows the process for solving the problem presented in SATs 2022 Paper 1 Q27, which involves calculating a percentage of a whole number. Students will learn how to partition a percent in order to make calculating the result a...
Curated Video
Applying Tax, Tip, and Discount: Using Proportions and Scale Factors
Through a real-life example of a pair of sneakers on sale, this video demonstrates step-by-step how to find the scale factor, calculate the discount, and determine the final cost. The video emphasizes the importance of understanding the...
Brian McLogan
Learn how to find 8% of 40
👉 Learn how to solve problems using percents. When solving problems with percents we will either convert the percents to decimal form or use proportions to solve. We will look to solve for the percent of change, the original price,...
TMW Media
Atomic Theory of Matter Part 2
This program covers part 2 of the very important topic of the atomic theory of matter. We discuss how atoms combine together to form new compounds. Students review the law of conservation of mass and how the mass of the substances at the...
PBS
The Lowdown — Percents Combined: Proportional Relationships with Multistep Ratio and Percent Problems
Multiple discounts are always a good thing. Viewers of an informative video see how to calculate sale prices by applying multiple percent discounts. They also learn to determine the resulting total percent discount by multiplying ratios.
Curated OER
How Do You Find Equivalent Ratios?
Ratios are a comparison of numbers. So given a ratio, how can an equivalent ratio be written? Just multiply or divide, both the numerator and the denominator, by the same value. The result will be different numbers, but equal values that...
Curated OER
How Do You Solve a Proportion Using Cross Products?
Cross multiply and solve for the unknown variable in this proportion problem. Then use the division property of equality to isolate that variable and get your solution.
Curated OER
How Do You Set Up a Proportion from a Word Problem?
In this word problem, the skill to remember is to match up the similar measurements. This means the inches match up with the inches and the feet match up with the feet measurements. This problem is a ratio and is written as fractions....
Curated OER
How Do You Solve a Proportion by Finding an Equivalent Ratio?
Find the missing value in this proportional equation. Look at the relationship of the two numerators and the two denominators to solve this proportional ratio.
Curated OER
Solving Word Problems with Percents
There are 20 kids on a bus, 60% of them have blue backpacks. How many is this? The teacher shows how to solve a percentage word problem using proportion ratios.
Curated OER
Percent Tax
Learn how to set up a proportion to determine how much additional tax you have to pay for an item.
Curated OER
Percent Tip
How much am I supposed to tip for this meal? Many have asked this question. The instructor uses a visual to first set up the known numbers and then writes the ratios to solve the problem.
Curated OER
Percent Discount
The concept of percent discount is very clearly explained in this informative tutorial. Learners will work through a real life discount problem using algebraic reasoning and a clearly outlined procedure. This is a good video.
National Education Association
Rates and Proportions
Clarify complex math concepts with a helpful video. Learners view ways to work with ratios and proportions while discussing vocabulary and notation. After solving proportions, they apply the new strategy to word problems.
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 so...
Curated OER
What is a Scale Drawing?
Scale drawings are an easy and plausible way to represent large things, such as roads and buildings, on paper. This tutorial explains what a scale drawing is and uses the example of a house to demonstrate how a scale drawing works. It...
Virtual Nerd
How Do You Solve a Proportion?
Use the means extreme proportion property to cross multiply and solve for the unknown variable in this proportion problem. Then use the division property of equality to isolate that variable and get your solution.
PBS
Real-Life Math | Chef
Cook up a lesson on unit conversions. Scholars brainstorm how chefs use math in restaurants, and then watch a video of a real chef explaining how unit conversions, food and supply costs, portion sizes, and payroll all require math. They...
California Academy of Science
Coral Reefs and Climate Change
Coral reefs cover less than one percent of the ocean floor, yet more than 25 percent of marine life lives in coral reefs. A colorful, engaging video describes the health of coral reefs and why the formations matter. The first lesson in a...