Students will analyze ratios and use proportions to solve problems using a ...

Students will analyze ratios and use proportions to solve problems using a cooperative, kinesthetic activity in which they will create “human ratios.” Students will use ratios to compare two quantities, then solve problems cooperatively by demonstrating how proportions are written to show equivalent ratios.

From politics to cookery, ratios, proportions and percentages are part of everyday ...

From politics to cookery, ratios, proportions and percentages are part of everyday life. This unit is designed to help you become more familiar with how figures can be manipulated, then you can check whether that discount really is as big as they claim!

In this activity, Harry explains key concepts about ratio and proportion. Also ...

In this activity, Harry explains key concepts about ratio and proportion. Also included: the mini-game Sleuths on the Loose, a comic video about proportions in "body math" and quiz-show questions. ***Access to Teacher's Domain content now requires free login to PBS Learning Media.

This lesson is about ratios and proportions using candy boxes as well ...

This lesson is about ratios and proportions using candy boxes as well as a recipe for making candy as situations to be considered. It addresses many Mathematical Reasoning standards and asks students to: Use models to understand fractions and to solve ratio problems; think about a ratio as part/part model and to think about the pattern growing in equal groups or a unit composed of the sum of the parts; find a scale factor and apply it to a ratio. (5th Grade Math)

Task Description: This 4-5 week unit focuses on developing an understanding of ...

Task Description: This 4-5 week unit focuses on developing an understanding of ratio concepts and using ratio reasoning to solve problems. This sequence of tasks asks students to demonstrate and effectively communicate their mathematical understanding of ratios and proportional relationships. Their strategies and executions should meet the content, thinking processes and qualitative demands of the tasks.

This interactive slideshow explains the notion of ratios and proportions, how to ...

This interactive slideshow explains the notion of ratios and proportions, how to write the, and how to find them. There are practice problems which walk visitors through each step of the process, including reducing answers to simplest terms, in which students are asked to calculate the rate of grass seed coverage per square foot and find the miles per gallon fuel use of a car. The lesson continues on to introduce proportion and work through practice problems in the same fashion.

Students will analyze ratios and use proportions to solve problems using a ...

Students will analyze ratios and use proportions to solve problems using a cooperative, kinesthetic activity in which they will create “human ratios.” Students will apply proportional reasoning to demonstrate application of a multiplicative situation by using cross products to solving proportions.

This set of instructional materials and problems helps students understand ratios and ...

This set of instructional materials and problems helps students understand ratios and proportions, starting with a simple review and progressing into the more advanced territory of similar triangles. The first three pages introduce ratios, proportions, and checking proportionality and the last four pages present mathematical and real-world problems for students to solve given their understanding of ratios and proportions.

A central theme in the middle school mathematics curriculum, proportional reasoning is ...

A central theme in the middle school mathematics curriculum, proportional reasoning is based on making sense of ratios in a variety of contexts. The resources chosen for this unit provide practice in solving problems, often informally, in the format of ga

This is a set of four, one-page problems about the size of ...

This is a set of four, one-page problems about the size of planets compared to earth. Learners may use ratios to compare planets within our solar system or those outside of our solar system with the earth. Options are presented so that students may learn about the MESSENGER mission to Mercury through a NASA press release or by viewing a NASA eClips video [6 min.]. This activity is part of the Space Math multi-media modules that integrate NASA press releases, NASA archival video, and mathematics problems targeted at specific math standards commonly encountered in middle school.

In this 30-day Grade 7 module, students build upon sixth grade reasoning ...

In this 30-day Grade 7 module, students build upon sixth grade reasoning of ratios and rates to formally define proportional relationships and the constant of proportionality. Students explore multiple representations of proportional relationships by looking at tables, graphs, equations, and verbal descriptions. Students extend their understanding about ratios and proportional relationships to compute unit rates for ratios and rates specified by rational numbers. The module concludes with students applying proportional reasoning to identify scale factor and create a scale drawing.

In this lesson designed to enhance literacy skills, students learn how to ...

In this lesson designed to enhance literacy skills, students learn how to use fractions to interpret the nutritional information contained on food labels.

Andrea Kowalchik has her students move around the room in pairs while ...

Andrea Kowalchik has her students move around the room in pairs while solving proportion problems that are tacked to the walls. This lesson is easy to prepare, fun for students, and gets them working quickly while being active all at the same time.

The battle is on in this game where you build your own ...

The battle is on in this game where you build your own potions! Check your ratios to win this mixture mix-off. Ratio Rumble guides students in: identifying ratios when used in a variety of contextual situations; providing visual representations of ratios; solving common problems or communicating by using rate, particularly unit rates; and explaining why ratios and rates naturally relate to fractions and decimals.

Students will use ratios to demonstrate the connections between proportional relationships, lines, ...

Students will use ratios to demonstrate the connections between proportional relationships, lines, and linear equations. Students will solve problems using a cooperative, kinesthetic activity in which they will create a ratio table, then graph proportional relationships with their bodies to demonstrate that the ratio (or rate) is the slope that will always pass through the origin.

This lesson unit is intended to help teachers assess whether students are ...

This lesson unit is intended to help teachers assess whether students are able to: identify when two quantities vary in direct proportion to each other; distinguish between direct proportion and other functional relationships; and solve proportionality problems using efficient methods.

In this session, a special kind of functional relationship is explored: the ...

In this session, a special kind of functional relationship is explored: the proportional relationship. Students develop proportional reasoning skills by comparing quantities, looking at the relative ways numbers change, and thinking about proportional relationships in linear functions. This lesson has four objectives. Students learn to: differentiate between relative and absolute meanings of "more" and determine which of these is a proportional relationship, compare ratios without using common denominator algorithms, differentiate between additive and multiplicative processes and their effects on scale and proportionality, and interpret graphs that represent proportional relationships or direct variation.

Learn about the dynamic relationships between a jet engine's heat loss, surface ...

Learn about the dynamic relationships between a jet engine's heat loss, surface area, and volume in this video adapted from Annenberg Learner's Learning Math: Patterns, Functions, and Algebra.

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