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Curated Video
Identify Proportional Relationships by Examining the Origin
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...
Curated Video
Exploring Similarity: Comparing Triangles with Congruent Angles
In this video, the teacher explains the concept of similarity in triangles by comparing congruent angles. They differentiate between congruent and similar figures, highlighting that similar figures have the same shape but not the same size.
Curated Video
Identify Direct and Inverse Variation Using the Shape of Graphs
This video explains how to interpret graphs in a coordinate plane to understand the relationship between x and y values. Review examples of both direct and inverse variations, highlighting how the shape of the graph provides information...
Curated Video
Writing Equations for Proportional Relationships
In this video, the teacher explains how to use the constant of proportionality to write an equation that expresses the relationship between two quantities. By finding the constant proportionality, students can determine the equation that...
Curated Video
Identifying Proportional Relationships Through Graph Analysis
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...
Curated Video
Describe the Relationship Between Two Measures by Examining the Graph of a Line
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...
Curated Video
Determining Proportional Relationships Using Tables
Learn how to determine if ratios are proportional by reading tables. Compare ratios of points scored by different players in a basketball game. Understand the importance of multiplying between ratios instead of adding within them to...
Curated OER
How Do You Know If Two Ratios are Proportional by Reducing?
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...
Curated OER
What is a Scale Drawing?
Scale drawings are an easy and plausible way to represent large things, such as roads and buildings, on paper. This tutorial explains what a scale drawing is and uses the example of a house to demonstrate how a scale drawing works. It...
Curated OER
How Do You Find the Constant of Variation from a Direct Variation Equation?
What is a constant variation? How can something change and be constant? Oh, the rate of change is constant. So if there are two variables that are directly proportional they can have a constant of variation? Yes! Still a bit confused?...
Curated OER
How Do You Solve a Problem Using Indirect Measurement with Shadows?
Using indirect measurement, this video shows viewers how to find the height of a flagpole. The lecturer employs drawings as well as proportions to solve this problem, explaining each step. A useful resource to aid struggling learners and...
Curated OER
How Do You Solve a Problem Using Indirect Measurement with Shadows?
Using indirect measurement, this video shows viewers how to find the height of a flagpole. The lecturer employs drawings as well as proportions to solve this problem, explaining each step. A useful resource to aid struggling learners and...
Curated OER
How Do You Determine If Two Ratios are Proportional by Reducing?
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...
Curated OER
What is a Scale Drawing?
Scale drawings are an easy and plausible way to represent large things, such as roads and buildings, on paper. This tutorial explains what a scale drawing is and uses the example of a house to demonstrate how a scale drawing works. It...
Sophia Learning
Sophia: Equivalent Fractions: Lesson 9
In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 9 of 12 in the series titled "Equivalent Fractions."
Virtual Nerd
Virtual Nerd: How Do You Solve a Word Problem Using Inverse Variation?
Word problem showing how to use the formula for inverse variation to find the constant of inverse variation and then solve for the answer. [3:08]
Sophia Learning
Sophia: Constant Rates of Change and Proportional Relationships
This video lesson provides examples of tables with proportional and non-proproptional relationships but have a constant rate of change.
Sophia Learning
Sophia: Indirect Measurement
This video lesson defines and provides an example of indirect measurement.
Sophia Learning
Sophia: Introduction to Triangle Similarity
Similar Triangles are explored in this video lesson. Students can check their understanding with an assessment. [5:51]
Sophia Learning
Sophia: Similar Solids
Similar solids are explored in this video lesson. The tutorial defines and provides examples of similar solids. Students can check their understanding with an assessment.
Sophia Learning
Sophia: Similar Solids and Similar Figures
This video tutorial describes what makes solids and figures similar. Students can check their understanding with an assessment.
Virtual Nerd
Virtual Nerd: How Do You Figure Out if Two Figures Are Similar?
Follow along with this tutorial to see an example of how to determine if two given figures are similar. [7:49]
Virtual Nerd
Virtual Nerd: How Do You Use the Formula for Direct Variation?
In this tutorial, discover how to use the formula for direct variation to find the constant of variation and then solve for your answer. [2 :12]
Virtual Nerd
Virtual Nerd: Solve a Word Problem Using the Direct Variation Formula
Take a look at this word problem involving an object's weight on Earth compared to its weight on the Moon and see how the formula for direct variation plays an important role in finding the solution. [3:05]