Ratios Videos - Free Educational Videos for Students in K - 12

Array

Lumos Video Store

This page provides a list of educational videos related to Ratios . You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Ratios .


Basic ratios


By Khan Academy

What a ratio is. Simple ratio problems.

Rates and ratios


By MathPlanetVideos

Express the ratio as a fraction in simplest form and as a decimal

Example: The six trig ratios


By Khan Academy

Worked example where we walk through finding the major trig ratios

Testing if Ratios are Proportional


By Khan Academy

Watch this video to learn a method to test if two (or more) ratios are equal. Equal ratios are called proportional. If the ratios can be reduced the same fraction in lowest terms then they are proportional.

Equivalent ratios


By Duane Habecker

Youtube Presents Equivalent ratios an educational video resources on english language arts.

Ratio tables


By Khan Academy

We're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on.

Trig Ratios of Special Angles Part 2


By AlRichards314

Youtube Presents Trig Ratios of Special Angles Part 2 an educational video resources on english language arts.

How to? - Trigonometry Cosine Ratio


By skoolm8

Shows you how to use the Cosine Ratio to find and unknown side of a right angle triangle.

How to? - Trigonometry Sine Ratio


By skoolm8

Shows you how to use the Sine Ratio to find and unkown side of a right angle triangle

Trigonometry - sine ratio example


By Mr Jamieson Maths

In this video made with 'Explain Everything' an applied example of how to use the sine ratio is shown.

Fractions & Proportions : Understanding Math Ratios


By

In math, ratio is a fraction in which two variables can compared. Discover how to convert ratios into fractions with help from a math teacher in this free vi...

Basic ratios


By Khan Academy

How are fractions and ratios the same? How are they different? Is 2:5 the same as 2/5?

Ratios - Introduction and word problems


By Math Meeting

Learn all about ratios and solving ratio word problems. Check out all my videos at http://YouTube.com/MathMeeting

Using Tables to Explore Ratios and Rates


By TeacherTube Math

YouTube presents 64 Using Tables to Explore Ratios and Rates an educational video resource on math.

Trigonometric Ratios of Special Angles


By AlRichards314

This video shows us how we determine the trigonometric ratios for the angles of 30 degrees, 45 degrees, and 60 degrees. Keep in mind that the ratios of the sides corresponding to these angles never change (even though the side lengths may change). That means that knowing the values for these trig ratios means you'll know them forever! They won't change!

Trigonometric functions and side ratios in right triangles


By Khan Academy

Sal explains how the trigonometric ratios are derived from triangle similarity considerations.

Ratio tables


By Khan Academy

In this example we'll plot points on the x and y axis to reflect the given ratios.

Using trigonomteric ratios - SOH CAH TOA


By Mr Jamieson Maths

In this 'in classroom' video, you will see examples of how to use three trigonometric ratios, sin cos and tan, to solve for sides and angles in right triangles.

Ratio tables


By Khan Academy

We're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on.

Ratio tables


By Khan Academy

We're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on.