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]
PBS
Pbs Learning Media: I <3 Math
This video series introduces key Common Core concepts in 4th-8th grade mathematics. Each video focuses on building a conceptual understanding of a topic so that students understand the "how" and "why" behind mathematical problem-solving.
PBS
Pbs Learning Media: Math in Fencing: Distance as a Variable
Learn how understanding distance--both lunge distance and the distance between you and your opponent--is an important strategy in the art of fencing. This clip is from the Center for Asian American Media. In the accompanying classroom...
PBS
Pbs Learning Media: Math in Fencing: Division of Clock Time
Learn about the mathematics of fencing, including the ratio of touches to time remaining that an athlete needs to mentally calculate in order to stay in the match, in this video from Center for Asian American Media. In the accompanying...
PBS
Pbs Learning Media: Real Life Math: Nurse
In this video, learn how mathematics--specifically, proportion, ratio, rate, and conversions--are used in the professional responsibilities of a registered nurse working on the surgical trauma floor. In the accompanying classroom...
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.
Math TV
Math tv.com: Basic Mathematics: Ratios Are Fractions
Videos offering step-by-step solutions to problems involving ratios. A math teacher and students will show you how to figure out answers to "write the ratio 16 to 48 as a fraction in lowest terms," "give the ratio of 2/3 to 4/9 as a...
Sophia Learning
Sophia: Simplifying Measurement Ratios
This lesson demonstrates how to simplify ratios containing measurements. Students can watch a video tutorial and then take an online quiz.
Khan Academy
Khan Academy: Algebra: More Advanced Ratio Problems
The algebra resource demonstrates how to solve advanced ratio problems. Students learn about the concept through a video tutorial. [9:58]
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: Ratios and Proportions: Ratio and Proportion
This video solves a problem involving ratio and proportions.
Khan Academy
Khan Academy: Algebra: Alternate Solution to Ratio Problem
The algebra resource demonstrates how to find an alternate solution to an advanced ratio problem. Students learn about the concept through a video tutorial. [7:02]
Khan Academy
Khan Academy: Intro to Ratios
A basic introduction to ratios and how to calculate them. [3:58]
Virtual Nerd
Virtual Nerd: What's a Ratio?
Ratios are everywhere. Watch this video tutorial to learn about them. [1:13]
Virtual Nerd
Virtual Nerd: How Do You Solve a Word Problem Using a Proportion?
This tutorial demonstrates how to use the scale from a blueprint of a house to help find the actual height of the house by using a proportion to solve. [2:29]
Khan Academy
Khan Academy: Ratios With Algebra: Find an Unknown in a Proportion
Video demonstrates how to find an unknown in a proportion three different ways..
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.
Khan Academy
Khan Academy: Ratios and Proportions: Understanding Proportions
This video shows how to determine if a given proportion is true or false.
Khan Academy
Khan Academy: Ratios With Algebra: The Golden Ratio
An introduction to the Golden ratio.
Sophia Learning
Sophia: Measurement Comparisons
Compare measurements using ratios and assess learning with a quiz.
Sophia Learning
Sophia: Proportions, Ratios, and Rates
This video lesson describes how ratios are related to rates and proportions. Students can check their understanding with an assessment.