| Activity |
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Description |
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Grades |
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Topics |
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Software |
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Area: Triangles |
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In the diagram below, the blue line is parallel to the base of the triangle. When you slide B back and forth along the blue line, how do the base (AC), height (BD), and area change? |
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6 |
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Geometry |
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GSP |
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 |
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Far Fetched Areas Glitch Problem |
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In order to find out the area we need to make a drawing of our tiles and then use a program called the Geometer’s Sketchpad to tell us how many square centimeters there are in our tiles. |
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6, 7 |
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Geometry |
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GSP Applet |
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 |
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Get to Know Sketchpad – Triangles |
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Using Sketchpad students make a chart of examples of triangles that can be described both by their angles and sides. Are there any that are impossible? |
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6 |
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Geometry |
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GSP |
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 |
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Getting to Know Sketchpad - Triangles & Spinwheels |
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See description of Spinwheels I and II. |
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6 |
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Geometry |
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GSP |
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 |
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Pattern Blocks for Sale |
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How much should we charge for the design if the square costs $1.00? |
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6, 7 |
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Geometry |
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GSP |
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 |
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Rectangle: Area & Perimeter |
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Question: What is the largest the area of a rectangle be if its perimeter is 20? |
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6 |
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Geometry |
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Applet |
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Spinwheels 1 |
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Step-by-step instructions for you and your students to create an animated pinwheel with Geometer's Sketchpad. |
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6 |
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Geometry |
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GSP |
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 |
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Spinwheels II |
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Version 3 of spinwheel with hole. |
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6, 7 |
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Geometry |
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GSP |
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 |
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Tri or Not to Tri |
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2 GSP downloads |
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6 |
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Geometry |
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GSP,
GSP |
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Types of Triangles |
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This activity deals with scalene, isosceles, equilateral, and right triangles. Students use a GSP sketch or an interactive web page to drag and manipulate four triangles, one of each type, and use the activity handout(s) to guide their exploration. |
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6 |
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Geometry |
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Applet |
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