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Resource Name	Topic (Course)	Technology	Type	$?	Rating
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Geometry Activities for Middle...	Quadrilaterals (Geometry)	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... More: lessons, discussions, ratings, reviews,...
Shape Makers: Developing Geome...	Polygons (Geometry)	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... More: lessons, discussions, ratings, reviews,...
PolygonFlux	Regular polygons (Geometry)	iPad	Tool	$	[0]
PolygonFlux lets you experience the flow of energy inside a polygon. In simplest terms, it traces the path of a point bouncing around inside a polygon of your choice, generating a pretty pattern. More: lessons, discussions, ratings, reviews,...
PolygonTrix	Regular polygons (Geometry)	iPad	Tool	$	[0]
Every school child has played with a pool ball on a rectangular table or a carom puck on a square board. What would change if the table were a triangle or a pentagon? PolygonTrix is a game that s... More: lessons, discussions, ratings, reviews,...
Area and perimeter of a rectan...	Rectangle (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page showing how to find the area and perimeter of a rectangle from the coordinates of its vertices. The rectangle can be either parallel to the axes o... More: lessons, discussions, ratings, reviews,...
Area and perimeter of a square...	Square (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page showing how to find the area and perimeter of a square from the coordinates of its vertices. The square can be either parallel to the axes or rota... More: lessons, discussions, ratings, reviews,...
Area and perimeter of a trapez...	Trapezoid (Geometry)	Flash	Activity		[2]
An interactive applet and associated web page showing how to find the area and perimeter of a trapezoid from the coordinates of its vertices. The trapezoid can be either parallel to the axes o... More: lessons, discussions, ratings, reviews,...
Definition and properties of a...	Square (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page that show the definition and properties of a square when applied in coordinate geometry. The applet has a square, and the user can drag any vertex ... More: lessons, discussions, ratings, reviews,...
Definition and properties of a...	Rectangle (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page that show the definition and properties of a rectangle in coordinate geometry. The applet has a rectangle with draggable vertices. As the user re-s... More: lessons, discussions, ratings, reviews,...
Definition and properties of a...	Trapezoid (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page that show the definition and properties of a trapezoid in coordinate geometry. The applet has a trapezoid with draggable vertices. As the user re-s... More: lessons, discussions, ratings, reviews,...
Diagonals of a rectangle- Math...	Rectangle (Geometry)	Flash	Activity		[0]
A web page and interactive applet show how to compute the length of the diagonals of a rectangle. A rectangle is shown that can be resized by dragging its vertices. As you drag, the diagonals a... More: lessons, discussions, ratings, reviews,...
Diagonals of a square - Math O...	Square (Geometry)	Flash	Activity		[0]
A web page and interactive applet show how to compute the length of the diagonals of a square. A square is shown that can be resized by dragging its vertices. As you drag, the diagonals are con... More: lessons, discussions, ratings, reviews,...
The bounding box (Coordinate ...	Rectangle (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page that show the definition and properties of the bounding box of a polygon or set of points. Also known as the circumscribed rectangle. The bounding b... More: lessons, discussions, ratings, reviews,...
Diagonals of a Rhombus	Rhombus (Geometry)	Sketchpad	Activity		[0]
A guided exploration, using Geometer's Sketchpad, of the construction and diagonals of a rhombus. More: lessons, discussions, ratings, reviews,...
Examining Angles in Polygons	Polygons (Geometry)	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. More: lessons, discussions, ratings, reviews,...
Exploring Quadrilaterals	Quadrilaterals (Geometry)	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 ... More: lessons, discussions, ratings, reviews,...
Exterior Angles in a Polygon	Polygons (Geometry)	Sketchpad	Activity		[0]
Students construct a pentagon with its exterior angles, measure the angles and find the sum. They then dilate the pentagon to look at the problem, and understand their result, in a new way. The lin... More: lessons, discussions, ratings, reviews,...
Midpoint Quadrilaterals	Quadrilaterals (Geometry)+	Sketchpad	Activity		[0]
Students construct the midpoints of the sides of a quadrilateral, connect them to form the midpoint quadrilateral, and then discover interesting properties of the midpoint quadrilateral. The link t... More: lessons, discussions, ratings, reviews,...
Proof as Discovery: Kite Midpo...	Quadrilaterals (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... More: lessons, discussions, ratings, reviews,...
Quadrilateral Exploration: Sha...	Quadrilaterals (Geometry)	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 ... More: lessons, discussions, ratings, reviews,...
Quadrilaterals	Quadrilaterals (Geometry)+	Sketchpad	Activity		[0]
Investigate the parallelogram, rectangle, square, rhombus, and isosceles trapezoid. Includes an activity in PDF format and a prepared sketch. More: lessons, discussions, ratings, reviews,...
Two Minimum Length Problems an...	Quadrilaterals (Geometry)	Sketchpad	Activity		[0]
A guided exploration of minimum distances from vertices of a triangle or quadrilateral to a point within the figure, using Geometer's Sketchpad. More: lessons, discussions, ratings, reviews,...
"Picking" Your Way through Are...	Polygons (Geometry)	TI-Nspire	Activity		[0]
In this activity, students will discover Pick�s Theorem by ﬁnding the relationship between area and the number of boundary points and interior points of a lattice polygon. More: lessons, discussions, ratings, reviews,...
Combinations	Polygons (Geometry)	TI-Nspire	Activity		[0]
This activity introduces students to combinations. They derive the formula for the number of combinations of n objects taken r at a time by starting with a list of permutations and eliminating those t... More: lessons, discussions, ratings, reviews,...
Studying Angles using Logo	Polygons (Geometry)	Computer	Lesson Plan		[0]
A group of Logo procedures to investigate angles. Use these two ways: if time is short, use the procedures as they are to investigate angles with students. If there's more time, let students join in c... More: lessons, discussions, ratings, reviews,...
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