Texas Instruments
Texas Instruments: Making Cookies
In this activity, students will reduce a cafeteria recipe to suit a household recipe. They use compatible numbers to choose smaller measurements while retaining the original proportions.
Texas Instruments
Texas Instruments: Real Life Real World Activity: Air Traffic Control
In this lesson, students will model and solve air traffic control problems with geometry software. The Cabri Jr. application will be used to construct a model of the problem situation and concepts from trigonometry and proportions are...
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: Sears Tower vs. Taipei 101
Students will discover the height of serveral buildings using proportions.
Texas Instruments
Texas Instruments: Math Today Wing Tabs Save Fuel
Using the USA TODAY Infograph, 'Wing tabs save fuel', ratios and proportions will be used to explore the concept of similarity between a drawing/model and the actual dimensions. The effects of dilation (size change) on an image and...
PBS
Pbs Learning Media: Cyberchase: Catching the Kidnapper
In this video segment from Cyberchase, the CyberSquad and Digit construct a physical profile of the person who kidnapped Choocroca, a giant cybercrocodile. [2:49]
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.
Oswego City School District
Regents Exam Prep Center: Proportions
The tutorial investigates proportions. Definitions, examples, and practice problems with solutions are included.
Oswego City School District
Regents Exam Prep Center: Practice With Proportions
The learning activity consists of practice problems and word problems that investigate proportions. Detailed explanations are included.
Saddleback College
Algebra2 Go: Prealgebra
The resource consists of comprehensive learning tools such as class notes, video lectures, and templates through which students can review prealgebra topics.
PBS
Pbs Teachers: Math Space Odyssey: How Much Do You Weigh in Outer Space?
Demonstrate the ability to apply the use of decimals, fractions, ratios and proportions to situations based upon given information about planets in the solar system.
![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...
![Pbs Mathline Lesson: Mix It Up [Pdf] Lesson Plan](https://content.lessonplanet.com/knovation/original/114249-5c08953e64aa805320eac921a29839e3.jpg?1661409096 "Pbs Mathline Lesson: Mix It Up [Pdf] Lesson Plan")
PBS
Pbs Mathline Lesson: Mix It Up [Pdf]
A lesson based on the story, "Oliver's Fruit Salad," where students explore the concept of proportional reasoning through modeling, student sharing, and questioning. A great introductory lesson for this concept that is sure to engage...
Other
The Futures Channel: Proportional Reasoning
"Connecting learning to the real world" is the goal of the Futures Channel. Through the use of short videos, teachers can integrate real-world examples of how math and science are used in everyday life. Complete teaching guidelines...
McGraw Hill
Glencoe Mathematics: Online Study Tools: The Percent Proportion
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of percent proportions.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Quiz on Proportions & Similarity
The online assessment displays knowledge of concepts used in Geometry. The multiple choice questions test learners on proportions and similarity.
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.
CK-12 Foundation
Ck 12: Arithmetic: Fractions as Percents Grade 7
[Free Registration/Login may be required to access all resource tools.] Write fractions as percents by using proportions and equal ratios.
CK-12 Foundation
Ck 12: Chemistry: Law of Definite Proportions
[Free Registration/Login may be required to access all resource tools.] Explains the law of definite proportions.
Texas Education Agency
Texas Gateway: Selecting and Using Appropriate Forms of Rational Numbers
Given real-life problems, the student will select an appropriate method and solve problems involving proportional relationships.
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.
Math Playground
Dirt Bike Proportions: Race by Finding Equivalent Ratios.
Proportions where students determine the missing number to make the proportion true.
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.