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Technology 
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Examining Angles in Polygons

Angles of polygons (Math 7) 
Sketchpad 
Activity 

[0]

Help students to discover or reinforce the angle formulas associated with polygons. Includes an activity in PDF format and a prepared sketch.
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Exploring Algebra 1 with The G...

Integers (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:

Exploring Characteristics of T...

Triangles (Math 7) 
Sketchpad 
Activity 

[0]

Students draw triangles and explore the classification of each using the measures of interior angles and lengths of sides. In the extension activities, the students further explore and generalize a fo...
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Exploring Geometry with The Ge...

Geometry in the plane (Math 7) 
Sketchpad 
Activity 
$ 
[0]

This book guides students as they construct and manipulate geometric figures, and discover relationships and theorems on their own. It features over 100 activities covering virtually every concept st...
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Exploring Quadrilaterals

Quadrilateral properties (Math 7) 
Sketchpad 
Activity 

[0]

Students explore various types of quadrilaterals, investigating their properties and figuring out how the various shapes relate to each other. The link to the activity itself is to a zip file that ...
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Exploring Types of Triangles

Triangles (Math 7) 
Sketchpad 
Activity 

[0]

Students explore various triangle properties, such as scalene, isosceles, equilateral, acute, right, and obtuse. The link to the tool itself is to a zip file that contains both the activity in pdf ...
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Exploring and Creating Tessell...

Tessellations (Math 7) 
Sketchpad 
Activity 

[0]

This activity has students explore and construct several different types of tessellations. The first part of the activity uses only regular polygons to create pure and semipure tessellations; therefo...
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Geometry Activities for Middle...

Geometry in the plane (Math 7) 
Sketchpad 
Activity 
$ 
[0]

These activities provide students with the opportunity to explore geometric concepts such as symmetry, transformations, and even fractal geometry in a way no other teaching tool can. The dynamic ca...
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Leonardo da Vinci's Proof

Pythagorean theorem (Math 7) 
Sketchpad 
Activity 

[0]

Students use reflection and rotation to build a sketch that demonstrates a famous proof by Leonardo. The link to the activity itself is to a zip file that contains both the activity in pdf format ...
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Mellow Yellow: Interpreting Gr...

Equations and functions (Math 7)+ 
Sketchpad 
Activity 

[0]

Compare different representations of motion: a story, a position graph, and the motion itself. Create a graph that matches a story, or write a story to match a graph, and check either by watching Mell...
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Pythagoras Plugged In: Proofs ...

Pythagorean theorem (Math 7) 
Sketchpad 
Activity 
$ 
[0]

This book guides students through a variety of proofs and applications of the Pythagorean theorem. By constructing and dynamically manipulating figures, students visualize the theorem and gain insight...
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Quadrilateral Exploration: Sha...

Quadrilateral properties (Math 7) 
Sketchpad 
Activity 

[0]

Students first use the seven "Quadrilateral Makers" (square maker, rhombus maker, rectangle maker, parallelogram maker, kite maker, trapezoid maker, and quadrilateral maker) to make a design of their ...
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Quadrilaterals

Quadrilateral properties (Math 7) 
Sketchpad 
Activity 

[0]

Investigate the parallelogram, rectangle, square, rhombus, and isosceles trapezoid. Includes an activity in PDF format and a prepared sketch.
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Reflection and Rotation Symmet...

Symmetry (Math 7)+ 
Sketchpad 
Activity 

[2]

Students test a variety of figures for symmetry by actually constructing reflections and rotations. The link to the tool itself is to a zip file that contains both the activity in pdf format and t...
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Reflections over Two Intersect...

Transformations (Math 7) 
Sketchpad 
Activity 

[0]

Students explore what happens when they reflect a figure over a line and then reflect the image over a second line that intersects the first. The link to the activity itself is to a zip file that c...
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Shape Makers: Developing Geome...

Triangles (Math 7)+ 
Sketchpad 
Activity 
$ 
[0]

Author Michael Battista has built what he calls the Shape Makers computer microworld, a series of explorations in which students develop dynamic mental models for thinking about geometric shapes an...
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Slope Pix Lab

Find slope (Math 7) 
Sketchpad 
Activity 

[1]

This is a computer activity using Sketchpad and specially selected pictures located online (SlopePix web page) to help students understand the concept of slope. Following the instructions, students...
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The Pythagorean Theorem

Pythagorean theorem (Math 7) 
Sketchpad 
Activity 

[0]

Students create both a visual and formal proof of the Pythagorean theorem, as well as view four additional geometric demonstrations of the theorem. These demonstrations are based on proofs by Bhaskara...
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The Slope Game

Find slope (Math 7) 
Sketchpad 
Activity 

[1]

Students use a twoplayer game to develop and refine their sense of the slopes of lines. The link to the activity itself is to a zip file that contains both the activity in pdf format and the corr...
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Transformations

Transformations (Math 7)+ 
Sketchpad 
Activity 

[1]

Investigate reflections, translations, glide reflections, dilations, rotations of 90, 180, 270 or any degree, and composition of reflections. Animations included on several pages. Usable at various ...
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Visual Demonstration of the Py...

Pythagorean theorem (Math 7) 
Sketchpad 
Activity 

[0]

Students do a visual demonstration of the Pythagorean theorem based on Euclid’s proof. By shearing the squares on the sides of a right triangle, they create congruent shapes without changing...
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Wait for a Date

Simulations (Math 7) 
Sketchpad 
Activity 

[1]

Students use Sketchpad to simulate a probability problem and then calculate a precise probability by reasoning about their model. The link to the activity itself is to a zip file that contains bo...
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The Cost of Being Late

Fractions (Math 7)+ 
Spreadsheet 
Activity 

[0]

The primary goal of this lesson is to understand that the costs associated with buying on credit and that making only minimum payments are problematic to longterm financial health. The secondary goal...
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Exploring the Birthday Paradox...

Probability (Math 7) 
TI Calculator 
Activity 

[0]

This lesson plan presents an activity which demonstrates the birthday paradox, using it as a springboard into a unit on probability. Explanation on the difficulty with probability; Use of the TI83 gr...
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Integrating Handheld Technolog...

General (Math 7) 
TI10 
Activity 

[0]

This book is unique in its appeal and assistance to preservice and inservice teachers of elementary level mathematics. That is, the book attempts to have teachers reflect on themselves as learners ...
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