Instructional Video2:59
Curated Video

Proportionality

9th - Higher Ed
What is proportionality? How does it relate to pattern? Learn the answers to these questions and explore the basics of proportional relationships in this video.
Instructional Video1:37
Curated Video

Proportional Relationships in a Table (Part 1)

K - 12th
Determine if ratios in a table are proportional by testing for equivalent ratios.
Instructional Video5:13
Curated Video

Graphing Proportional Relationships Using a Table

K - 5th
This video explains how to graph a proportional relationship using a table. Understand the concept of proportions and learn how to plot points on a coordinate plane. The lesson also includes a real-life example of calculating earnings...
Instructional Video4:39
Curated Video

Graphing Proportional Relationships

K - 5th
This video explains how to display all the possibilities in a proportional relationship by graphing. Use examples of pounds and cost to demonstrate how to plot points on a coordinate plane and show that any ordered pair on the line...
Instructional Video3:41
Curated Video

Proportional Relationships in a Graph

K - 12th
Identify the graph of a proportional relationship.
Instructional Video7:03
Curated Video

Finding Unit Rates from a Graph of a Proportional Relationship

9th - 12th
This video lesson will provide instruction for students to learn how to find a rate from the graph of a proportional relationship. Students will be instructed how to interpret a point on a graph and use this to find the unit rate. We...
Instructional Video9:27
msvgo

Direct Proportion

K - 12th
It explains the concept of direct proportion by using real-world examples. It also provides a few word problems on direct proportion and their solutions.
Instructional Video5:31
Curated Video

Identify Proportional Relationships by Examining the Origin

K - 5th
In this video, students learn how to identify a proportional relationship by understanding the meaning of the origin on a graph. The video explains that a proportional relationship is characterized by a straight line on the graph and a...
Instructional Video5:02
Curated Video

Finding Unit Rates from Graphs

K - 5th
This video explains how to find the unit rate from a graph showing the relationship between time and distance. Examine three methods to determine the unit rate, emphasizing the importance of correctly identifying the dependent and...
Instructional Video4:06
Curated Video

Determining the Constant of Proportionality from a Graph

K - 5th
This video explains how to determine the constant of proportionality from a graph. It demonstrates the process using an example of time and distance. The constant of proportionality can be found by finding the ratio of y to x, and it...
Instructional Video4:37
Curated Video

Comparing Proportional Relationships by Unit Rates

K - 5th
In this lesson, students will learn how to compare prices represented in different ways and how to determine the better buy using unit rates. They will also learn how to compare the speeds of two trains by comparing their unit rates. By...
Instructional Video4:06
Curated Video

Finding Fractional Unit Rates Using a Graph

K - 5th
In this video, students learn how to find a fractional unit rate by using a graph. The teacher explains that unit rates can be expressed as fractions instead of decimals, and provides examples of how to calculate unit rates from graphs....
Instructional Video5:27
Curated Video

Quantifying Proportional Relationships Using Graphs

K - 5th
Learn how to quantify and describe the relationship between two proportional measures using graphs. The teacher reviews concepts such as quantities, coordinates, proportional versus non-proportional relationships, and the importance of...
Instructional Video5:07
Curated Video

Understanding Proportional Relationships: Relating Graphs and Equations

K - 5th
This video explains how to understand proportional relationships by relating graphs and equations. Learn about the process of writing equations for proportional relationships, identifying the independent and dependent variables, and...
Instructional Video5:13
Curated Video

Identifying Proportional Relationships Through Graph Analysis

K - 5th
In this lesson, students will learn how to identify a proportional relationship by analyzing a graph. They will understand that a proportional relationship exists when an input is multiplied by a constant to create an output. They will...
Instructional Video4:58
Curated Video

Describe the Relationship Between Two Measures by Examining the Graph of a Line

K - 5th
This video explains how to describe the relationship between two measures by examining the graph of a line. They discuss the independent and dependent variables, as well as proportional and non-proportional relationships. Through...
Instructional Video
Government of Alberta

Learn alberta.ca: Math Interactives: Rate/ratio/proportion (Video Interactive)

6th - 8th Standards
The use of rate, ratio, and proportion is illustrated in this video about action photography. An additional interactive element allows students to explore equivalent ratios equivalencies through enlarging and reducing images to compare...
Instructional Video
Khan Academy

Khan Academy: Algebra: Direct Variation Models

9th - 10th
This video demonstrates how to create a direct variation model, or a linear equation, given a word problem that deals with rate of change. It also shows how to solve the equation and graph the direct variation model. Practice problems...
Instructional Video
Khan Academy

Khan Academy: Algebra: Proportionality Constant for Direct Variation

9th - 10th Standards
This video demonstrates how to set up an equation for direct variation and solve for the variable "k" which represents the constant of proportionality. [1:44]
Instructional Video
Khan Academy

Khan Academy: Algebra: Direct Variation Application

9th - 10th Standards
This video demonstrates how to solve a word problem involving a direct variation. It shows how to set up a linear equation for a directly proportional relationship and solve for the constant of proportionality. [2:02]
Instructional Video
Math Mammoth

Math Mammoth: How to Solve Basic Percent Word Problems, Part 2

5th - 8th Standards
This video demonstrates how to find a percentage of an area by beginning with fractional parts. [4:55]
Instructional Video
Math Mammoth

Math Mammoth: Proportion Word Problems: Pre Algebra Lesson

6th - 8th Standards
Demonstrates how to solve three word problems using ratios and proportions. [5:55]
Instructional Video
Imagine Learning Classroom

Learn Zillion: Convert Between Currencies and Find Exchange Rate

7th Standards
In this lesson, you will learn how to convert between two different currencies and find the exchange rate by solving proportions. [3:47]
Instructional Video
Imagine Learning Classroom

Learn Zillion: Identify the Constant of Proportionality From a Diagram

7th Standards
In this lesson, you will learn how to identify the constant of proportionality from a labeled diagram by writing an equation of the form y=mx and solving for m. [3:56]