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Topic (Course) 
Technology 
Type 
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Rating 

Percent Mixture Problems (Alge...

Proportions (Math 7) 
Flash 
Support Material 

[0]

This minilesson explains how to work with percent mixture problems.
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Ratio (Amsco Integrated Algebr...

Ratios (Math 7) 
Flash 
Support Material 

[0]

This minilesson explains ratios, equivalent ratios, and continued ratios.
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Verbal Problems Involving Rati...

Ratios (Math 7)+ 
Flash 
Support Material 

[0]

This minilesson explains how to solve word problems involving ratios.
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Work Related Problems (Algebra...

Ratio and proportion (Math 7) 
Flash 
Support Material 

[0]

This minilesson explains work problems involving situations such as a group of people working together on a job.
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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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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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Touch Fraction

Ratio and proportion (Math 7) 
Android 
Tool 

[0]

Touch Fraction lets you visualize positive and negative
fractions  and zoom into equivalent fractions using the
rational representation diagram.
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All About Ratios

Ratios (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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How much did it cost back in?

Proportions (Math 7)+ 
Computer 
Tool 

[0]

This WolframAlpha widget calculates and displays the current value of a historical amount of money.
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SimCalc MathWorlds Software fo...

Ratio and proportion (Math 7) 
Computer 
Tool 

[2]

The SimCalc Project aims to democratize access to the Mathematics of Change for mainstream students by combining advanced simulation technology with innovative curriculum that begins in the early g...
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Tip Jar

Ratios (Math 7)+ 
Computer 
Tool 

[0]

What's the deal with all the tip calculators in the App Store? Is calculating 15% hard? Nope, and this lesson uses percents to explore the math of eatingand workingin a restaurant, from leaving ti...
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Connection Speed

Ratio and proportion (Math 7)+ 
Excel 
Tool 

[0]

Students test the speed of their Internet connection and then estimate the time required to upload and download files of various sizes.
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How fast can you run?

Rates (Math 7) 
Excel 
Tool 

[1]

Students determine how fast they can run in ft/s, mi/hr, m/s, and km/hr.
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About Variation

Ratios (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: A Learning T...

Ratios (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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Ameba

Proportional reasoning (Math 7) 
Flash 
Tool 

[3]

Ameba is designed to help students gain a better understanding of ratios and proportions. Students are asked to eat a given amount of dots in reference to the total number of dots on the board. The to...
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Personal Shopper

Proportional reasoning (Math 7) 
Flash 
Tool 

[3]

The Personal Shopper game uses shopping and moneyhandling in order to reinforce the idea of proportional reasoning. The gameplay involves the player being given a certain amount of money, and a perc...
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Rate

Rates (Math 7) 
Flash 
Tool 

[0]

Understand that rate compares two quantities of different kinds of units and learn how to express rates as unit rates. This online lesson includes an interactive activity and assessment question set.
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Thinking Blocks  Ratio Word P...

Ratio and proportion (Math 7) 
Flash 
Tool 

[6]

Thinking Blocks teaches students in grades 4  6 how to model and solve multistep word problems dealing with ratio and proportion. Using brightly colored blocks, students model the relationships among...
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Balance Applet

Ratio and proportion (Math 7) 
Java Applet 
Tool 

[0]

The weight of one of three shapes is shown in a box below that shape. Try to figure out the weight of the other two objects by using the balance.
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Changing Cost per Minute

Rates (Math 7) 
Java Applet 
Tool 

[3]

Users learn how modifications in the rate affect the linear graph displaying accumulation (the total cost of calls).
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Constant Cost per Minute

Rates (Math 7) 
Java Applet 
Tool 

[0]

Users examine and try to understand the relationship between a constant rate and how it affects the cost over time.
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Consumer Price Index (CPI) Inf...

Rates (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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Fish Farm I

Ratios (Math 7) 
Java Applet 
Tool 

[1]

Students try to place male and female fish in different ponds such as to satisfy certain restrictions on the ratios of male to female fish.
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