ClassFlow
Class Flow: Introduction to Ratio and Proportions
[Free Registration/Login Required] This flipchart introduces the concept of ratios and proportions using a variety of visuals and manipulatives.
Alabama Learning Exchange
Alex: Exploring Similar Figures Using Proportions
In this lesson, students will explore the concept of similarity. Students will first simplify ratios, solve proportions using the cross product property, and use properties of proportions to solve real-world problems. Similar polygons...
OER Commons
Oer Commons: Introduction to Ratio Tables
Seventh graders use ratio cards to find equivalencies and form partnerships for the week. As a class, 7th graders discuss and decide on classroom norms. Give each student a ratio card. Instruct students to find a classmate whose card has...
Discovery Education
Discovery Education: Web Math: Proportions
This WebMath site provides a general description of proportions. Content also includes a 'problem solver' which lists step-by-step instructions on how to obtain the correct answer.
Mangahigh
Mangahigh: Number: Working With Ratios
Deterime the ratios of amounts to one another and then simplify.
Math.com
Math.com: Proportions
This lesson explains proportions along with the formula to determine if the ratios are equal. An interactive practice activity is included.
Mangahigh
Mangahigh: Number: Ratios
Test your knowledge of ratios by determining the equivalents and how to interpret the given ratio.
McGraw Hill
Glencoe: Self Check Chapter Test Ratio, Proportion, and Percent
The interactive assessment examines ratios, proportions, and percents. Students complete 18 questions created by Glencoe. Hints and solutions are included.
McGraw Hill
Glencoe: Self Check Chapter Test Ratio, Proportions, and Percent 20 Questions
The interactive assessment examines ratios, proportions, and percents. Students complete 20 questions created by Glencoe. Hints and solutions are included.
Government of Alberta
Learn alberta.ca: Math Interactives: Rate/ratio/proportion (Object Interactive)
This highly interactive resource uses the backdrop of digital photography to explore equivalent forms of 3-term ratios. Printable activities, solutions, and learning strategies are also provided.
McGraw Hill
Glencoe: Self Check Chapter Test Using Proportional Reasoning
The mathematics resource consists of an assessment with hints and solutions. Students answer questions that review proportional reasoning.
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,...
OER Commons
Oer Commons: Calculating the Unit Rate of a Ratio Situation
Seventh graders find the unit rate of a ratio situation.
CK-12 Foundation
Ck 12: Geometry: Proportion Properties
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to set up and solve proportions.
CK-12 Foundation
Ck 12: Geometry: Forms of Ratios
[Free Registration/Login may be required to access all resource tools.] This concept teaches students what a ratio is and how to use one. 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.
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...
The Math League
The Math League: Ratio and Proportion
Detailed explanations of ratio, comparing ratios, proportion, rate, converting rates, and average rate of speed, all with examples.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Learning Ratios & Proportions Through Scale Drawings
Website which strengthens the conceptual connection between scale drawings and ratios through an activity lesson.
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...
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.
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