PBS
Scale City — Proportions and Music in the Real World
Masterfully mix math and music. Pupils first watch a video about the music instrument calliope on the riverboat Belle of Louisville. They then conduct an activity where they investigate how the length of the strings on a string...
PBS
Real World Ratio and Rate Problem: Bianca’s Fifty Percent Solution
Fifty percent off can still be quite expensive. Future consumers watch a video showing an irresponsible young shopper overspending in a 50 percent off sale. They then use store ads to calculate 10, 25, 50, and 75 percent discounts on items.
PBS
Relative Reasoning in Finance
Take stock of your financial knowledge. As part of the Math at the Core MS: Ratios series, future investors consider the financial well-being and the environmental stewardship of companies in which to invest. They calculate an emissions...
PBS
The Lowdown — The Math of Credit Cards
Take credit for finding a great lesson on credit cards. Future consumers first learn about lines of credit and credit cards by watching a video. They then work through some problems on simple interest and monthly payments.
PBS
The Lowdown — Defining and Calculating Percents
Don't discount the lesson. Part of The Lowdown: Real-World Math series, an engaging video shows viewers how to calculate percent discounts using the idea that percents are ratios out of 100. It also looks at how to determine whether a 20...
Crash Course
Intro to Big Data: Crash Course Statistics #38
What makes data big? The 38th installment in the series Crash Course Statistics provides a definition of big data and its origins. It shows various methods and resources on how to collect big data and how companies use big data for a...
PBS
Recognize and Represent Proportional Relationships between Quantities: Ratio, Proportion, Cross Multiply, and Divide
Review three video clips for one major concept. The resource contains three short clips to introduce the idea of ratios and proportions and how to solve a proportion. After watching the video, partners use their noses to push pom poms...
PBS
Real-Life Math | Athletic Trainer
The lesson is sure to get scholars' blood pumping. An athletic trainer highlights some uses of math in athletic training in a heart-pumping video. After watching it, pupils get together in groups to measure their resting heart rates and...
PBS
Real-Life Math | Nurse
Quick, nurse, grab a calculator! A role-playing activity has groups measure vitals, such as heart rate, blood pressure, weight, etc. After viewing a video on how nurses use math in the workplace, scholars apply knowledge of rates and...
Anywhere Math
Comparing and Graphing Ratios
Finding a unit rate is imperative to the smart shopper! A video lesson introduces learners to a comparison of ratios. Initially, the instructor manipulates the ratios to have a common denominator for better comparison. He then explains...
CK-12 Foundation
Using Ratios: Lesson
How do ratios work in geometry? The video answers just this question in order to help your class master an important skill. Using the concept of ratios, this segment in an extensive geometry playlist applies ratio reasoning to...
Math Antics
Ratios and Rates
Use ratios to compare numbers. The resource provides an explanation of the difference between fractions and ratios by pointing out that ratios are used to compare two quantities. The video introduces rates as special ratios that involve...
Math Playground
What is a Ratio?
Explore the concept of ratios with this film. Using pennies and nickels, an instructor shows how to describe a ratio. However, I think the use of money might be a bit confusing. Prior to showing this video, you may want to clarify that...
Corbett Maths
Simplifying Ratio
Ratios with smaller numbers are so much easier to manipulate. A short video describes how to simplify ratios by comparing the process to simplifying fractions. It works through a real-world example that requires writing and simplifying a...
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Introduction to Ratios
This video introduces and explains the concept of ratios through a number of examples. Practice problems are available. [14:13]
PBS
Pbs Learning Media: I <3 Math: What Is a Ratio?
This video is an introduction to the concept of ratios that provides real-world examples. This "I <3 Math" episode defines ratios, discusses combining ratios, and demonstrates the correct ways to write ratios. [2:37]
Loyola University Chicago
Math Flix: Writing Ratios 2
This QuickTime movie gives examples of writing ratios. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept.
Khan Academy
Khan Academy: Ratios With Algebra: More Advanced Ratio Problem With Algebra
A step-by-step instructional video on how to solve a ratio problem.
Khan Academy
Khan Academy: Solving Ratio Problems With Tables: Example 1
Presents several examples of ratio tables and asks questions about the equivalent ratio values. [5:05]
Khan Academy
Khan Academy: Algebra: Ratio Problem With Basic Algebra
The algebra resource demonstrates how to solve ratio problems. Students learn about the concept through a video tutorial. [5:12]
Khan Academy
Khan Academy: Ratios With Algebra: Ratio Problem With Basic Algebra
A step-by-step breakdown on how to solve ratio problems with algebra.
Sophia Learning
Sophia: Equivalent Ratios
Students learn about equivalent ratios in this video lesson. The tutorial consists of detailed examples that explore the mathematics concept.