(Complete Item Description)
- Abstract:
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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)
- Subject:
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Mathematics and Statistics
- Grade Level:
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Primary,
Secondary
- Collection:
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Inside Mathematics
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Read the Fine Print
(Complete Item Description)
- Abstract:
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This learning object focuses on basic understanding of ratios and proportions and is part of the Kentucky Learning Depot, Kentucky’s P-20 repository for digital learning content. This math learning object replicates what might take place in a classroom, beginning with objectives, examples, and opportunities for users to practice and get feedback. This is appropriate for multiple grade levels throughout K-12 and some post-secondary, both “academic” and “technical” in application.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Primary,
Secondary
- Collection:
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Individual Authors
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Evaluated
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(Complete Item Description)
- Abstract:
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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!
- Subject:
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Mathematics and Statistics
- Grade Level:
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Post-secondary
- Collection:
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Open University OpenLearn
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Remix and Share
(Complete Item Description)
- Abstract:
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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.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary
- Collection:
-
Open Author Resources
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Evaluated
Open Author
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(Complete Item Description)
- Abstract:
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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.
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Primary,
Secondary
- Collection:
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New York City Department of Education
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No Strings Attached
(Complete Item Description)
- Abstract:
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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.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary
- Collection:
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Teaching Channel
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(Complete Item Description)
- Abstract:
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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.
- Subject:
-
Mathematics and Statistics
- Grade Level:
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Secondary
- Collection:
-
Open Author Resources
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Open Author
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- Abstract:
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Definition of the trigonometric ratios for a right triangle
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Secondary,
Post-secondary
- Collection:
-
GeoGebraTube
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- Abstract:
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Explore the meaning of the trigonometric ratios by measuring the sides of these three triangles.
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Secondary,
Post-secondary
- Collection:
-
GeoGebraTube
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(Complete Item Description)
- Abstract:
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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.
- Subject:
-
Mathematics and Statistics
- Grade Level:
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Secondary
- Collection:
-
Open Author Resources
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Evaluated
Open Author
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(Complete Item Description)
- Abstract:
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Change the angle and length of the triangle and watch the trig ratios respond.
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Secondary,
Post-secondary
- Collection:
-
GeoGebraTube
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- Abstract:
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A small applet showing that the ratio as shown in the app in an isosceles is always the same
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Secondary,
Post-secondary
- Collection:
-
GeoGebraTube
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- Abstract:
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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.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary
- Collection:
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Mathematics Assessment Project (MAP)
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(Complete Item Description)
- Abstract:
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In some textbooks, a distinction is made between a ratio, which is assumed to have a common unit for both quantities, and a rate, which is defined to be a quotient of two quantities with different units (e.g. a ratio of the number of miles to the number of hours). No such distinction is made in the common core and hence, the two quantities in a ratio may or may not have a common unit. However, when there is a common unit, as in this problem, it is possible to add the two quantities and then find the ratio of each quantity with respect to the whole (often described as a part-whole relationship).
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary
- Collection:
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Illustrative Mathematics
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Remix and Share
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Read the Fine Print
(Complete Item Description)
- Abstract:
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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
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Primary,
Secondary
- Collection:
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Middle School Portal
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- Abstract:
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In this activity, learners use their hands as tools for indirect measurement. Learners explore how to use ratios to calculate the approximate height of something that can't be measured directly by first measuring something that can be directly measured. This activity can also be used to explain how scientists use indirect measurement to determine distances between things in the universe that are too far away, too large or too small to measure directly (i.e. diameter of the moon or number of bacteria in a volume of liquid).
- Subject:
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Mathematics and Statistics,
Science and Technology
- Grade Level:
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Secondary
- Collection:
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Exploratorium
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Read the Fine Print
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- Abstract:
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Helping picture to calculate the trigonometric ratios of 45ź
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Secondary,
Post-secondary
- Collection:
-
GeoGebraTube
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- Abstract:
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The three activities in this investigation center on situations involving rational numbers and proportions that students encounter at a bakery. These activities involve several important concepts of rational numbers and proportions, including partitioning a unit into equal parts, the quotient interpretation of fractions, the area model of fractions, determining fractional parts of a unit not cut into equal-sized pieces, and equivalence.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary
- Collection:
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Illuminations
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No restrictions on your remixing, redistributing, or making derivative works. Give credit to the author, as required.
Your remixing, redistributing, or making derivatives works comes with some restrictions, including how it is shared.
Your redistributing comes with some restrictions. Do not remix or make derivative works.
Copyrighted materials, available under Fair Use and the TEACH Act for US-based educators, or other custom arrangements. Go to the resource provider to see their individual restrictions.