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.
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.
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.
Texas Instruments
Texas Instruments: How Do You Measure Up? (With the Ti 10)
In this activity, students measure weight, height, and length with the help of a balance, scales, rulers, yardstick, and tape measures. They use their TI-10 to find proportions and to round off answers to whole numbers.
Texas Instruments
Texas Instruments: What's My Ratio?
In this activity, students use linear measurement and calculators to investigate proportionality and determine the constant ratio between similar figures.
CK-12 Foundation
Ck 12: Algebra: Rational Equations Using Proportions
[Free Registration/Login may be required to access all resource tools.] Learn how to solve rational equations using proportions.
Texas Education Agency
Texas Gateway: Generalizing Proportions From Similar Figures
Given a pair of similar figures, including dilations, students will be able to generalize that the lengths of corresponding sides are proportional.
Texas Education Agency
Texas Gateway:use Proportional Relations to Find Missing Measurements 2 D Figures
Given pictorial representations and problem situations of 2-dimensional figures or 3-dimensional figures, the student will use proportional reasoning to find a missing measurement.
CK-12 Foundation
Ck 12: Geometry: Unknown Measures of Similar Figures
[Free Registration/Login may be required to access all resource tools.] Use proportions to find unknown measures in similar figures and then apply these measures to indirect measurement.
Other
I Coach Math: Scale Factor
Explains what a scale factor is and scenarios where it is used. Presents an example problem and its solution, and includes a video. [9:36]
PBS
Pbs: Proportional Scaling
Examine some of the complexities and complications inherent in the development of a micro engine. This video focuses on how MIT researchers have to consider proportions comparing volume and surface area when factoring heat loss, taking...
PBS
Pbs: Scale City: One Dimensional Scaling in the Real World
In this video, life-size replicas help demonstrate one-dimensional scaling and the ratio relationship between two real-world quantities. The accompanying classroom activity helps students understand how ratios and proportions can help...
University of South Florida
Fcat: The Shadow Knows (Ratio, Proportion & Measurement)
Students use their height and the length of the shadow to determine the height of buildings. A great outdoor activity to learn about proportions and ratios.
ClassFlow
Class Flow: Ratio and Proportion Geometry Review
[Free Registration/Login Required] This flipchart is a Jeopardy style review for Ratio and Proportion. Comes form the McDougal Littell Geometry book.