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About Variation

Making comparisons (Math 7) 
Flash 
Tool 

[0]

This tutorial explains direct variation, indirect variation, and the constant of variation as they describe the relationship between the x and y values in a simple function.
College Cram charges...
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All About Ratios

Making comparisons (Math 7) 
Computer 
Tool 

[2]

The "All About Ratios" activities are designed to introduce ratios in a conceptbuilding way. The activities can be done on computers with Internet access or be printed. The author suggests that pairs...
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All About Ratios: A Learning T...

Making comparisons (Math 7) 
Flash 
Tool 

[2]

The "All About Ratios" activities are designed to introduce ratios in a conceptbuilding way. Activities include both practice exercises and a quiz.
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Compare Prices During the Grea...

Making comparisons (Math 7) 
JavaScript 
Support Material 

[0]

How much did toys and clothing cost during the Great Depression of the 1930s? What would they cost today?
Look at the Then and Now: Prices table below. In the left column is a list of women's clot...
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Comparing Measures with the Pr...

Making comparisons (Math 7) 
Java Applet 
Activity 

[0]

In these activities, you’ll predict and compare various dimensions of objects on a theatre stage, using the Proportioner tool.
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Consumer Price Index (CPI) Inf...

Making comparisons (Math 7) 
Java Applet 
Tool 

[0]

This is an inflation calculator for adjusting costs from one year to another using the Consumer Price Index (CPI) inflation index. This inflation calculator is based on the average inflation index dur...
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Consumer Price Index (Estimate...

Making comparisons (Math 7) 
JavaScript 
Support Material 

[0]

This page has data on the Consumer Price Index (CPI) is a measure of the average change in prices over time in a market basket of goods and services. The Bureau of Labor Statistics releases CPI data m...
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Consumer Price Index, 1913

Making comparisons (Math 7) 
JavaScript 
Support Material 

[0]

The Consumer Price Index (CPI) is a measure of the average change in prices over time in a market basket of goods and services. The Bureau of Labor Statistics releases CPI data monthly. This table pro...
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Direct Variation (Amsco Integr...

Making comparisons (Math 7) 
Flash 
Support Material 

[0]

This minilesson explains direct variation: a relationship between two variables such that their ratio is always constant.
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Gross Domestic Product Deflato...

Making comparisons (Math 7) 
JavaScript 
Tool 

[0]

This is an inflation calculator for adjusting costs from one year to another using the Gross Domestic Product (GDP) Deflator inflation index. This inflation calculator is based on the inflation rate d...
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How much did it cost back in?

Making comparisons (Math 7) 
Computer 
Tool 

[0]

This WolframAlpha widget calculates and displays the current value of a historical amount of money.
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Proportioner

Making comparisons (Math 7) 
Java Applet 
Tool 

[0]

Highlight proportion and scale with this tool that allows you to compare image dimensions by using one image to "paint" another. Use the Warm Up activity to familiarize yourself with the tool.
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Similar Figures

Making comparisons (Math 7) 
JavaScript 
Tool 

[0]

The user learns what similar figures are and how to determine if two figures are similar. After viewing examples, users can interactively practice determining the length of the missing side of two sim...
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Verbal Problems Involving Rati...

Making comparisons (Math 7) 
Flash 
Support Material 

[0]

This minilesson explains how to solve word problems involving ratios.
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