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Instructional Video3:44
Brian McLogan

Given the ratio of sides and perimeter of a triangle find the lengths

12th - Higher Ed
👉 Learn how to solve with the ratio of sides and angles of a triangle. Given the ratio of the sides of a triangle and the perimeter of the triangle, we can solve for the actual lengths of the triangle. Similarly, when the ratio of the...
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Instructional Video12:01
Curated Video

Percents to Decimals to Fractions

9th - 12th
In this video lesson we will learn the definition of a percent as a part of 100. We will identify the percent represented by a shaded illustration. We will write percents as decimals. We will write decimals as percents. We will convert a...
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Instructional Video1:57
Brian McLogan

What is the similarity of triangles for SSS

12th - Higher Ed
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...
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Instructional Video11:27
Curated Video

Similar Figures

9th - 12th
In this video lesson, we will learn the definition of similar figures. Similar figures are figures that are the same shape but different sizes. Similar figures have corresponding sides that are proportional and corresponding angles that...
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Instructional Video4:17
Brian McLogan

Finding the rate of change from a graph

12th - Higher Ed
👉 Learn how to find the rate of change from graph. The rate of change is the rate at which y-values are changing with respect to the change in x-values. To determine the rate of change from a graph, a right triangle is drawn on the graph...
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Instructional Video2:16
Brian McLogan

How to determine the scale factor for the dilation of two triangles

12th - Higher Ed
👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is...
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Instructional Video4:54
Curated OER

What are Equivalent Ratios?

6th - 8th
Work through a word problem with the help of a video tutor. You'll learn how equivalent ratios are just like equivalent fractions. Write a ratio as a fraction, reduce each ratio, then determine if they are the same. It's as simple as that!
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Instructional Video5:07
Curated OER

How Do You Find Equivalent Ratios?

6th - 8th
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...
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Instructional Video5:11
Virtual Nerd

How Do You Solve a Word Problem Using Ratios?

6th - 8th Standards
The teacher demonstrates how to set up a word problem into a ratio of fractions. There are many ways to solve this equivalent ratios problem and the instructor chooses to find a multiplier to find the missing value.
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Instructional Video4:34
Curated OER

How Do You Solve a Word Problem Using Ratios?

6th - 8th
The teacher demonstrates how to set up a word problem into a proportion. There are many ways to solve this equivalent ratios problem and the instructor chooses to find a multiplier to find the missing value.
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Instructional Video5:12
Curated OER

What are Equivalent Fractions?

3rd - 7th
Check this out! Make equivalent fractions by multiplying or dividing a given value. It's a useful skill to have in math. Watch this video as the instructor demonstrates several ways to get equivalent fractions.
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Instructional Video5:17
Curated OER

How Do You Determine If Two Ratios are Proportional by Reducing?

6th - 12th
Working on proportional ratios in your class? This video might be for you! An instructor takes a step-by-step approach to reducing and comparing two ratios in order to determine if they are proportional. A clear video, this resource...
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Instructional Video4:34
Curated OER

How Do You Know If Two Ratios are Proportional by Reducing?

7th - 9th
Working on proportional ratios in your class? This video might be for you! An instructor takes a step-by-step approach to reducing and comparing two ratios in order to determine if they are proportional. A clear video, this resource...
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Instructional Video10:30
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Math Antics

Proportions

6th - 8th Standards
Equivalent ratios lead to proportions. The video provides the definition of a proportion and provides examples of proportions. Using real-world examples, the resource shows how to solve for unknown quantities in proportions using the...
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Instructional Video4:20
Curated OER

How Do You Solve a Scale Model Problem Using a Scale Factor?

6th - 8th
Scale drawings are used to represent many things. Scales are used all the time on maps, and in architectural drawings. Watch this video as the instructor illustrates a simple drawing of a blueprint to represent the footage of an actual...
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Instructional Video
Virtual Nerd

Virtual Nerd: What Are Equivalent Ratios?

7th - 9th
This video tutorial takes a look at ratios and shows how to tell if they have the same value or are equivalent. [4:54]