Google
Google for Education: Ratios and Proportions
Students use ratio and rate reasoning to solve real-world and math problems by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
University of South Florida
Fcat: Baseball Proportion: Teacher Notes
Students learn about proportions using regular and souvenir baseball bats. This site contains a complete lesson plan, which is available in a printable version.
University of South Florida
Fcat: Using Proportions and Go Fish!
Students "go fishing" and use proportions to learn how estimating is used to determine the size of a population.
Wolfram Research
Wolfram Math World: Golden Ratio
Math World explains the Golden Ratio, gives the formula for finding the irrational number, and expresses this value as an infinite series. Also defines and represents the Ratio geometrically, its relationship to the Fibonacci numbers,...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Ratios and Proportions
Get independent practice working with ratios and proportions. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Primary Resources
Primary Resources: Ratio and Proportion
A collection of teacher resources to aid in teaching and reviewing ratio and proportion in math. There are worksheets, PowerPoint presentations, activities, and smartboard activities available for the teacher to download.
![Pbs Mathline: Bead Dazzling (Proportional Reasoning) [Pdf] Lesson Plan](https://content.lessonplanet.com/knovation/original/114246-c0ff81bc865fdf767397fcd7c31f2652.jpg?1661409083 "Pbs Mathline: Bead Dazzling (Proportional Reasoning) [Pdf] Lesson Plan")
PBS
Pbs Mathline: Bead Dazzling (Proportional Reasoning) [Pdf]
A comprehensive instructional activity on algebraic thinking where students create and identify patterns using proportional reasoning. Research based, this instructional activity includes technology connections, items for discussion, and...
CK-12 Foundation
Ck 12: Arithmetic: Proportions to Find Percent, P
[Free Registration/Login may be required to access all resource tools.] In this lesson students use proportions to find percents. Students examine guided notes, review guided practice, watch instructional videos and attempt practice...
CK-12 Foundation
Ck 12: Arithmetic: Proportions to Find Dimensions
[Free Registration/Login may be required to access all resource tools.] In this lesson studnets find actual or scale dimensions using a given scale, ratio, or proportion. Students examine guided notes, review guided practice, watch...
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.
Texas Education Agency
Texas Gateway: Generalizing Geometric Properties of Ratios in Similar Figures
Students will investigate patterns to make conjectures about geometric relationships and apply the definition of similarity, in terms of a dilation, to identify similar figures and their proportional sides and congruent corresponding...
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.
PBS
Pbs Learning Media: Ratio/proportion: Targeted Math Instruction
At the end of this lesson about ratio/proportion, learners will be able to recognize and apply ratios and proportions to solve real-life problems and solve for any unknown component.
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...
CK-12 Foundation
Ck 12: Arithmetic: Proportions to Find Scale Ratios
[Free Registration/Login may be required to access all resource tools.] In this lesson students find a scale, ratio, or proportion given actual and scale dimensions. Students examine guided notes, review guided practice, watch...
PBS
Pbs: The Lowdown: Percents Combined: Proportional Relationships With Multistep Ratio and Percent Problems
Learn how to calculate sale price when combining two "percent-off" discounts in this video from KQED. In the accompanying classroom activity, students develop and share a variety of strategies, including modeling with a 10 x 10 grid to...
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.
CK-12 Foundation
Ck 12: Arithmetic: Ratios
[Free Registration/Login may be required to access all resource tools.] In this lesson students write ratios to model real-world scenarios. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Geometry: Forms of Ratios
[Free Registration/Login may be required to access all resource tools.] In this lesson students find and reduce ratios. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
Better Lesson
Better Lesson: Introduction to Ratios
What is a ratio? How can we create equivalent ratios? Students work to express and extend relationships using ratios.
Other
Nearpod: Rates & Ratios
In this activity on ratios, 7th graders explore how ratios can be used to demonstrate rates by exploring proportional relationships.
Education Development Center
Tune in to Learning: Math Lesson Working With Ratios
Did you know that chefs must know how to use ratios in order to prepare meals? Learn the value of understanding how to write ratios, ratio proportionality, and ratios in lowest terms in this interactive lesson. Based on real world...
CK-12 Foundation
Ck 12: Arithmetic: Ratios
[Free Registration/Login may be required to access all resource tools.] In this lesson students write ratios, order ratios from least to greatest and greatest to least and compare ratio. Students examine guided notes, review guided...
Khan Academy
Khan Academy: Ratio Tables
Practice filling out tables of equivalent ratios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.