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Cabri Jr. Sample Activities

Ratio and proportion (Math 7) 
Cabri Jr. 
Activity 

[0]

The intent of each activity in this brief book is to allow students to use the TI83 Plus and TI84 Plus families of graphing calculators to explore and make conjectures related to key geometry concep...
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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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Exploring Distance, Rate, and ...

Rates (Math 7) 
Java Applet 
Activity 

[1]

This lesson involves the Runners' applet from the NCTM website. The applet uses two runners, and allows for a variety of parameters. Changing the parameters on the applet helps students develop an und...
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Exploring Distance, Rate, and ...

Rates (Math 7) 
Java Applet 
Activity 

[0]

This worksheet follows up on the classwork activity. Although the homework can be done without having access to the web, it is more beneficial for students to use the applet to check their answers.
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Fish Farm Problem

Ratios (Math 7) 
Java Applet 
Activity 

[1]

Depending on the student's approach to this problem, many types of math can be incorporated to solve this problem. The concept of ratio is used throughout, and students can solve the problem by experi...
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Fish Farm, Part II Problem

Ratios (Math 7) 
Java Applet 
Activity 

[0]

This problem allows students to investigate different data collection methods. Students realize that they get different data depending on whether they have a small sample size, but a large number of t...
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Galactic Exchange Problem

Ratio and proportion (Math 7) 
Java Applet 
Activity 

[0]

This problem allows students to investigate ratio and proportion, by discovering the exchange rate between different alien currencies (i.e. 7 circles have the same value as 3 triangles, etc.) By manip...
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Graph Zooming Problem

Scale (Math 7) 
Java Applet 
Activity 

[0]

By asking students about the intersection between two lines, this problem involves solving two linear equations graphically. However, the main purpose of the problem is to investigate what happens whe...
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Leonardo da Vinci Activity

Ratio and proportion (Math 7) 
Java Applet 
Activity 

[0]

Students answer the question: Is the ratio of our arm span to our height really equal to 1? If an emphasis is given to a/h = 1, this can be an engaging activity using variables. Use a spreadsheet to w...
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Area of an Equilateral Triangl...

Ratio and proportion (Math 7) 
TI73 Explorer 
Activity 

[0]

Stepbystep directions on how to use the GeoBoard App to construct objects of various sizes on circular or square boards.
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Balance Applet Teacher Introdu...

Ratio and proportion (Math 7) 

Lesson Plan 

[0]

The Balance Applet is a game. There is a balance and 3 different shapes. The weight of one shape is given. The player is asked to find the other shapes' weights using the balance.
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FibonacciLike Sequences and t...

Ratios (Math 7) 
Excel 
Lesson Plan 

[0]

In this activity, students develop the Fibonacci sequence and use a spreadsheet to investigate several of its interesting properties, drawing on a recursive formula to discuss arithmetic and geometric...
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Was Leonardo Correct? (continu...

Ratios (Math 7) 
Fathom 
Lesson Plan 

[0]

This activity builds on “LeastSquares Lines and Correlation – Was Leonardo Correct?” from Exploring Statistics with Fathom, which examines the accuracy of various ideal ratios between body ...
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Fish Farm Teacher Support

Ratios (Math 7) 
Java Applet 
Lesson Plan 

[0]

Links to Standards, activities, lessons, other resources.
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Fish Farm, Part II Teacher Sup...

Ratios (Math 7) 
Java Applet 
Lesson Plan 

[1]

Links to Standards, activities, lessons, student resources, and other resources.
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Galactic Exchange Teacher Reso...

Ratio and proportion (Math 7) 
Java Applet 
Lesson Plan 

[0]

Links to Standards, activities, lessons, Ask Dr. Math archives, vocabulary, other resources.
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Graph Zooming Teacher Support

Scale (Math 7) 
Java Applet 
Lesson Plan 

[0]

Links to Standards, activities, lessons, Ask Dr. Math archives, vocabulary, other resources.
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Graphical Representations for ...

Ratios (Math 7)+ 
Java Applet 
Lesson Plan 

[1]

Finding a rule for the number of hits is only the first step in exploring the Paper Pool game. Students can gain a deeper understanding of the patterns by considering graphical representations of the ...
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How Many Hits?

Ratios (Math 7)+ 
Java Applet 
Lesson Plan 

[1]

Students will continue their investigation of the Paper Pool game by exploring more tables and organizing the results. Using the data that they collect, they will attempt to find a relationship betwee...
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Learn the Game

Ratio and proportion (Math 7) 
Java Applet 
Lesson Plan 

[1]

In the following lessons of this unit, students will have an opportunity to fully explore the patterns that result from the Paper Pool game. In this lesson, however, students will only spend time lear...
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Leonardo da Vinci Lesson Plan

Ratio and proportion (Math 7) 
Java Applet 
Lesson Plan 

[2]

Question: Is the ratio of our arm span to our height really equal to 1? If an emphasis is given to a/h = 1, this can be an engaging activity using variables. Use a spreadsheet to work with the data.
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Which Pocket?

Ratios (Math 7)+ 
Java Applet 
Lesson Plan 

[2]

In this lesson, students continue their investigation by discovering a rule to predict the pocket in which the ball will land. As an extension, students can also consider the number of squares that a ...
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Wrapping It Up

Ratios (Math 7)+ 
Java Applet 
Lesson Plan 

[0]

In the first four lessons of this unit, students investigated the Paper Pool game, collected data, identified patterns, and made predictions about the number of hits, the pocket in which the ball land...
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Lifting a Lion, TI15

Ratio and proportion (Math 7) 
TI15 
Lesson Plan 

[0]

An activity designed to take advantage of the features of the TI15 calculator. Using a toy lion and a lever, students will discover how much work is needed to raise the toy lion. They will use propor...
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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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