PBS
Using Two Variables to Express Algebraic Relationships
Harry needs a new wardrobe. Mathematicians watch a Cyberchase episode in which Harry uses a $100 budget for a fashion update. This anticipatory video prepares your class for a lesson in the use of two variables to solve real-world...
![Inside Mathematics: Truffles [Pdf] Lesson Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Inside Mathematics: Truffles [Pdf] Lesson Plan")
University of Texas
Inside Mathematics: Truffles [Pdf]
This task challenges a student to demonstrate understanding of ratios and proportions. Students must determine a generalized rule from an understanding of ratio and proportional reasoning in a given real-world context.
Other
Desmos: Marcellus the Giant
Students explore proportional relationships in this activity as they create a giant that is proportional to an original model. The proportions are graphed and students can interact with the graph to change the giant's size.
Texas Education Agency
Texas Gateway: Graphing Proportional Relationships
Given a proportional relationship, students will be able to graph a set of data from the relationship and interpret the unit rate as the slope of the line.
Student Achievement Partners
Illustrative Mathematics: Riding at a Constant Speed [Pdf]
Assess students understanding of proportional relationships with this assessment using speed.
Cuemath
Cuemath: Proportion
A comprehensive guide for learning all about proportions with definitions, proportion formulas, types of proportions, properties of proportions, the difference between ratio and proportion, solved examples, and practice questions.
Oswego City School District
Regents Exam Prep Center: Relation Machine
A downloadable worksheet that allows learners to practice solving equations by using the "relation machine." Solve for y and determine if the relation is a function for the x value.
Other
Big Ideas Math: Interpreting a Proportional Relationship [Pdf]
Illustrated examples partnered with follow-up practice problems for interpreting proportional relationships.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Walk a Thon 2
The purpose of this task is for students to translate information about a context involving constant speed into information presented in a table and to find the time it takes to travel a unit distance as well as the distance traveled per...
Mangahigh
Mangahigh: Number: Ratios
Test your knowledge of ratios by determining the equivalents and how to interpret the given ratio.
Khan Academy
Khan Academy: Proportional Relationships
Practice telling whether or not the relationship between two quantities is proportional by reasoning about equivalent ratios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Khan Academy
Khan Academy: Solving Proportions
Practice solving basic proportions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Units
In this exercise, students solve word problems that involve using different units. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Writing Proportions
Practice writing proportions to describe real-world situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Writing Proportional Equations
Practice writing equations to describe proportional relationships. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Proportions
Practice using your graphing calculator for proportion problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems: Proportions
Practice using your graphing calculator for solving proportion problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
Khan Academy
Khan Academy: Identify Proportional Relationships
Practice telling whether or not the relationship between two quantities is proportional by analyzing word problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Interpreting Graphs of Proportional Relationships
Practice reading and analyzing graphs of proportional relationships. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving a Ratio With & Without a Diagram
A student is searching for a solution to a ratio question without using a diagram. Dr. Math helps to break it down both with and without a diagram. An understanding of fractions, multiplication, and basic algebra is necessary to get this...
Illustrative Mathematics
Illustrative Mathematics: 7.rp Proportionality
This lesson plan explores how to recognize and represent proportional relationships between quantities.
Khan Academy
Khan Academy: Rates and Proportional Relationships
A variety of questions about rates and proportional relationships involving graphs, tables, and equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Ratio and Proportion
The Math Page tutorial explains and defines ratio and proportion and includes this practice section at the end of the lesson.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Proportionality
Acquire a deeper understanding of the concept of proportionality. Concise definitions, detailed examples, and an interactive worksheet to apply what you have learned.