Texas Instruments
Texas Instruments: Graphs and Fractions
Have students draw squares on graph paper and half some of the squares on the outside. Number all the squares and continue numbering with the halfs. Students are then instructed to create their own ratios such as: 4 halves to eight...
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: Practice With Ratios
The learning activity consists of word problems that investigate ratios. Detailed explanations are included.
Other
Cpa class.com: Ratios for Financial Statement Analysis
This site summarizes the most common financial statement analysis ratios and shows the formulas for calculating them. Click on "Annual Report Project" for additional related links.
Other
Helping With math.com: Ratios and Unit Rates
This site contains a lesson about ratios and unit rates as well as guided and independent practice for students to review the skills.
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.
Indiana University
Indiana University: Area 10 Mathematics and Technology: Graphing Ratios
Activities to explore writing ratios, graphing ratios and using ratios to solve problems. Both a teacher and student guide are included.
Texas Instruments
Texas Instruments: Math Today Ballooning Inside the Box
In this activity Using the USATODAY infograph, "Ballooning inside the box", students will explore geometric relationships using similar triangles. Identifying triangles with two pairs of congruent angles to explore similarity properties...
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 learners create and identify patterns using proportional reasoning. Research based, this instructional activity includes technology connections, items for discussion, and...
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...
Scholastic
Scholastic: Study Jams! Math: Algebra: Ratio
Explore word problems about ratios and watch and listen to all the steps needed to solve.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Ratios and Rates
This site gives a short interactive quiz which allows students to self-assess their understanding of ratio and rates.
University of Cambridge
University of Cambridge: Maths and Sports: Triathlon and Fitness
The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories? This activity provides a real-life context for working with proportionality, speed, rates, and units of measurement and is aimed...
Illustrative Mathematics
Illustrative Mathematics: 7.rp Two School Dance
The purpose of this task is to see how well students students understand and reason with ratios. This task was adapted from problem #14 on the 2011 American Mathematics Competition (AMC) 8 Test. Aligns with 7.RP.A.3. The site provides a...
Illustrative Mathematics
Illustrative Mathematics: 7.rp,ee Gotham City Taxis
The purpose of this task is to give middle schoolers an opportunity to solve a multi-step ratio problem that can be approached in many ways. The site includes a task and the solution.
Illustrative Mathematics
Illustrative Mathematics: 6.ee,ns,rp; 8.ee,f Pennies to Heaven
The goal of this task is to give students a context to investigate large numbers and measurements. Students need to fluently convert units with very large numbers in order to successfully complete this task. The total number of pennies...
Illustrative Mathematics
Illustrative Mathematics: 6.ee,rp 7.ee,rp Anna in d.c.
The purpose of this task is to give young scholars an opportunity to solve a multi-step percentage problem that can be approached in many ways. Because the tax and tip in this problem are a fixed percentage of the cost of the meal, the...
Illustrative Mathematics
Illustrative Mathematics: 7.rp Tax and Tip
This site provides a problem with completed solutions for that problem. This problem covers the topic of sales tax and tips. The problem aligns with 7.RP.A.3.
Mangahigh
Mangahigh: Games: Ratio and Proportion: Use Double Ratios
Double ratios are investigated in this mathematics resource. Students learn about double ratios through a lesson with examples and assess their understanding with a learning game.
Mangahigh
Mangahigh: Number: Percent Increase and Decrease Calculator
Students learn about the concept of percent change by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.
Mangahigh
Mangahigh: Number: Ratios
Test your knowledge of ratios by determining the equivalents and how to interpret the given ratio.
Mangahigh
Mangahigh: Number: Working With Ratios
Deterime the ratios of amounts to one another and then simplify.