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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

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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Fish Farm, Part II

Ratios (Math 7) 
Java Applet 
Tool 

[1]

Students collect data on randomly chosen fish from a pond. Using this data, they try to determine the ratio of male fish to female fish in the pond.
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Free Ride

Ratio and proportion (Math 7) 
Java Applet 
Tool 

[2]

This applet allows you to vary the gear ratio of a bike. The distance traveled by a halfpedal is determined by the ratio of gears. Can you capture all five flags on a course?
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Galactic Exchange

Ratio and proportion (Math 7) 
Java Applet 
Tool 

[4]

Students are asked to discover the exchange rates among different types of alien currency, and use this information to find out the amount of money needed to "buy" certain types of food.
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Graph Zooming

Scale (Math 7) 
Java Applet 
Tool 

[0]

Students use different buttons to zoom a graph. They then investigate what is visible and what isn't, depending on which scale the zoom displays.
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Image Tool

Scale (Math 7) 
Java Applet 
Tool 

[0]

This activity allows the user to measure angles and explore the concept of "scale" as it pertains to maps, images, and drawings.
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Integer Bars

Ratio and proportion (Math 7) 
Java Applet 
Tool 

[0]

Compare, rotate, and combine Integer Bars, which come
in different colors and lengths  from 1 unit to
10 units.
NOTE: Jill Britton discovered that a zipped version of this applet by J...
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LineUp with Math

Ratio and proportion (Math 7) 
Java Applet 
Tool 

[0]

LineUp With Math(TM) consists of six Problem Sets. Each enables students to explore and apply decisionmaking and proportional reasoning skills to resolve distanceratetime conflicts in realistic ...
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Pan Balance  Shapes (Fixed Va...

Ratio and proportion (Math 7) 
Java Applet 
Tool 

[3]

This double pan balance, created for use by participants in the PreK‑2 Algebra E‑Workshop, is a special version of the Pan Balance  Shapes applet. It uses numbers that are friendly for pr...
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Paper Pool Tool

Ratio and proportion (Math 7) 
Java Applet 
Tool 

[9]

This applet allows users to explore the game of Paper Pool in which a ball leaves a corner at 45 degrees and continues on until landing in a pocket.
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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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Side Length, Volume, and Surfa...

Scale (Math 7) 
Java Applet 
Tool 

[0]

The user can manipulate the scale factor that links two threedimensional rectangular prisms and learn about the relationships among edge lengths, surface areas, and volumes.
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Understanding Distance, Speed,...

Rates (Math 7) 
Java Applet 
Tool 

[72]

In this activity, students investigate how changing starting position and step size affect the graph of time versus distance.
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Understanding Ratios of Areas ...

Ratios (Math 7) 
Java Applet 
Tool 

[0]

Users are given an opportunity to explore an interesting quantitative relationship between the area of a polygon and the area of an inscribed figure formed by joining the midpoints of the adjacent sid...
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Distance, Rate, and Time

Rates (Math 7)+ 
JavaScript 
Tool 

[0]

The user learns about rates and how to use formulas for solving word problems. After viewing examples, users can interactively practice problems using proportions or the distance formula to find the m...
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Gross Domestic Product Deflato...

Rates (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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Math Cats Balance

Ratio and proportion (Math 7) 
JavaScript 
Tool 

[0]

You can choose from a wide range of objects to place on this scale  from electrons to galaxies! Click the arrow next to "thin cat" and scroll up and down the object lists to see all the choices.
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Proportions

Proportions (Math 7) 
JavaScript 
Tool 

[0]

The user reviews the definition of proportions and how to take the cross product. After viewing examples, users can practice finding the cross product to solve for the missing number in the proportion...
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Ratios

Ratios (Math 7) 
JavaScript 
Tool 

[0]

The user reviews what ratios are. After viewing examples, users can practice finding equivalent ratios with this interactive tool.
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Ratios and Proportions Unit Qu...

Ratios (Math 7)+ 
JavaScript 
Tool 

[0]

The user takes an online interactive quiz on ratios, proportions, rates, and similar figures.
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Similar Figures

Ratios (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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Jets Distance Problem

Rates (Math 7) 
Shockwave 
Tool 

[0]

The 3D animated video helps students understand the wordings in the following distance, rate, and time word problem: Two space jets named Dragon and Eagle start from Mars and fly in opposite dire...
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Panda Distance Problem  the...

Ratio and proportion (Math 7) 
Shockwave 
Tool 

[0]

The 3D animated video helps students understand the wordings in the following distance, time, and rate word problem:
The baby panda left home. Two minutes later, Mama found out an...
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