# Forms of Ratios

## Ways to compare two numbers.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Forms of Ratios

by CK-12 //at grade
This concept teaches students what a ratio is and how to use one.
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• PLIX

## Forms of Ratios: Pyramids Mural

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Forms of Ratios Interactive
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## Cake Areas

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Forms of Ratios Interactive
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• Video

## Forms of Ratios Principles

by CK-12 //at grade
This video gives more detail about the mathematical principles presented in Forms of Ratios.
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## Forms of Ratios Examples

by CK-12 //at grade
This video shows how to work step-by-step through one or more of the examples in Forms of Ratios.
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• Critical Thinking

## Forms of Ratios Discussion Questions

by CK-12 //at grade
A list of student-submitted discussion questions for Forms of Ratios.
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• Real World Application

## Ratios and Railroads

by CK-12 //at grade
Discover the geometry behind the scale model railroads you can find in museums, toy stores, and amusement parks.
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• Real World Application

## In the Doll's House

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Discover how artists create dollhouses that end up in museums.
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• Study Guide

## Ratios and Proportions Study Guide

by CK-12 //at grade
This study guide reviews ratios, proportions, and cross-multiplication.
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