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Topic (Course) 
Technology 
Type 
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Intercepts of Lines and their ...

Line (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration, using Geometer's Sketchpad, of lines on the coordinate plane, and the relation of intercepts to linear equations.
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Standard Equation of a Line

Line (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration, using Geometer's Sketchpad, of the standard form of a linear equation.
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Line in SlopeIntercept Form

Linear Equations (Algebra) 
Sketchpad 
Tool 

[0]

This sketch allows the manipulation of a line in slopeintercept form. On the first page, the coefficients m and b are restricted to multiples of 0.5. On the second page, they are unrestricted and can...
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Mystery Sums 1

Linear Systems (Algebra) 
Sketchpad 
Tool 

[1]

Students use logic and early algebra reasoning skills to find the secret numerical values of four letters.
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Exploring Algebra 1 with The G...

Linear relationships (Math 7) 
Sketchpad 
Activity 
$ 
[1]

This collection of 56 activities compiled specifically for Algebra 1—including updated activities from Exploring Algebra with The Geometer's Sketchpad and many new ones—covers topics such as:

Slopes and Derivatives

Local linearity (Calculus) 
Sketchpad 
Activity 

[0]

This activity demonstrates one of the many ways Sketchpad can be used in a calculus or math analysis class. Students manipulate a tangent line to a curve to investigate what it means for a curve to ha...
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Box Volume

Local min / max (Algebra II) 
Sketchpad 
Tool 

[0]

Make an opentop box from a sheet of paper by cutting squares out of the corners. See how the volume of the box changes as the sides of the squares change. The link to the tool itself downloads the ...
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Proof as Discovery: Kite Midpo...

Logic and proof (Geometry) 
Sketchpad 
Activity 

[0]

Students investigate and prove a property of kites, and use the proof to make a discovery about other quadrilaterals. The link to the activity itself is to a zip file that contains both the activi...
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Proof as Explanation: Distance...

Logic and proof (Geometry) 
Sketchpad 
Activity 

[0]

Students explore the sum of certain distances in an equilateral triangle, and develop a proof to explain their observations. The link to the activity itself is to a zip file that contains both the...
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Proof as Systematization: Tria...

Logic and proof (Geometry) 
Sketchpad 
Activity 

[1]

Students use Sketchpad to develop a proof for a result that was discovered and used (without proof) in an earlier activity. The link to the activity itself is to a zip file that contains both the a...
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Proof as Verification: Areas

Logic and proof (Geometry) 
Sketchpad 
Activity 

[0]

Students form a conjecture about the ratio of two areas in a quadrilateral, and use Sketchpad to search for a proof. In the process they verify or disprove their results for two different kinds of ...
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Proof as Discovery: Kite Midpo...

Logic and proof (Geometry) 
Sketchpad 
Tool 

[0]

Students investigate and prove a property of kites, and use the proof to make a discovery about other quadrilaterals. The link to the tool itself is to a zip file that contains both the sketch and...
More: lessons, discussions, ratings, reviews,...

Proof as Explanation: Distance...

Logic and proof (Geometry) 
Sketchpad 
Tool 

[0]

Students explore the sum of certain distances in an equilateral triangle, and develop a proof to explain their observations. The link to the tool itself is to a zip file that contains both the ske...
More: lessons, discussions, ratings, reviews,...

Proof as Systematization: Tria...

Logic and proof (Geometry) 
Sketchpad 
Tool 

[0]

Students use Sketchpad to develop a proof for a result that was discovered and used (without proof) in an earlier activity. The link to the tool itself is to a zip file that contains both the sketc...
More: lessons, discussions, ratings, reviews,...

Proof as Verification: Areas

Logic and proof (Geometry) 
Sketchpad 
Tool 

[0]

Students form a conjecture about the ratio of two areas in a quadrilateral, and use Sketchpad to search for a proof. In the process they verify or disprove their results for two different kinds of ...
More: lessons, discussions, ratings, reviews,...

Graphing f '(x): Increasing, D...

Meaning of the sign of f' (Calculus) 
Sketchpad 
Activity 

[0]

This activity is designed to follow the activities From Secant Lines to Tangent Lines and Slopes and Derivatives [referenced below], but it can easily stand on its own. Using a dynamic t...
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Slopes and Derivatives

Meaning of the sign of f' (Calculus) 
Sketchpad 
Activity 

[0]

This activity demonstrates one of the many ways Sketchpad can be used in a calculus or math analysis class. Students manipulate a tangent line to a curve to investigate what it means for a curve to ha...
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Curved Path

Measurement (Math 4) 
Sketchpad 
Tool 

[0]

The mathematical ideas developed in this activity consist in the iteration of linear units to measure a curved path. The process of constructing a path of a given length can be difficult, even for mid...
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Curved Path

Measurement (Math 5) 
Sketchpad 
Tool 

[0]

The mathematical ideas developed in this activity consist in the iteration of linear units to measure a curved path. The process of constructing a path of a given length can be difficult, even for mid...
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Curved Path

Measurement (Math 6) 
Sketchpad 
Tool 

[0]

The mathematical ideas developed in this activity consist in the iteration of linear units to measure a curved path. The process of constructing a path of a given length can be difficult, even for mid...
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Curved Path

Measurement (Math 7) 
Sketchpad 
Tool 

[0]

The mathematical ideas developed in this activity consist in the iteration of linear units to measure a curved path. The process of constructing a path of a given length can be difficult, even for mid...
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Annie's Sketchpad activities

Modeling and applications (Geometry) 
Sketchpad 
Lesson Plan 

[0]

Here are some activities to help you learn more about using the different aspects of Geometer's Sketchpad. The examples include using action buttons and constructing script tools.
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LSRL, Residual Plots, Data Tra...

NonLinear Relationships (Probability & Statistics) 
Sketchpad 
Tool 

[0]

Drag seven independent points on a scatterplot, or send them to predetermined arrangements, to enhance understanding of correlation and the implication of changes.
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Measuring Fish

Nonstandard units (Math 3) 
Sketchpad 
Tool 

[0]

Students use special rulers to measure the size of fish using "binkers" a nonstandard unit. Students encounter fish that are not whole number units in length and experiment with the use of fractional...
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Stretching Ruler

Nonstandard units (Math 3) 
Sketchpad 
Tool 

[0]

This set of activities introduces students to mathematical foundations of measurement, and especially to the concept of the unit of measurement. Students create their own rulers to measure different o...
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