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Definition and properties of a...	Line (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page that show the definition of a vertical line in coordinate geometry. The applet has two points that the user can drag which define a line. The line ... More: lessons, discussions, ratings, reviews,...
Definition and properties of a...	Line (Geometry)	Flash	Activity		[0]
An interactive applet and associated web page that show the definition of a horizontal line in coordinate geometry. The applet has two points that the user can drag which define a line. The lin... More: lessons, discussions, ratings, reviews,...
Distance from a point to a lin...	Point (Geometry)+	Flash	Activity		[0]
An interactive applet and associated web page that demonstrate how to find the perpendicular distance between a point and a line. The applet has a line with sliders that adjust its slope and in... More: lessons, discussions, ratings, reviews,...
Distance from a point to a lin...	Point (Geometry)+	Flash	Activity		[0]
An interactive applet and associated web page that demonstrate how to find the perpendicular distance between a point and a line using trigonometry, given the coordinates of the point and the sl... More: lessons, discussions, ratings, reviews,...
Equations of Lines	Line (Geometry)	Sketchpad	Activity		[0]
A guided exploration, using Geometer's Sketchpad, of a line on the coordinate plane, and its slope. More: lessons, discussions, ratings, reviews,...
Geometry Activities for Middle...	Points and lines (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,...
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. More: lessons, discussions, ratings, reviews,...
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. More: lessons, discussions, ratings, reviews,...
The Betweenness Theorem	Points and lines (Geometry)	Computer	Lesson Plan		[0]
This lesson provides directions for teaching the betweenness theorem using Geometer's Sketchpad. More: lessons, discussions, ratings, reviews,...
Lines, Rays, Line Segments, an...	Points and lines (Geometry)	Java Applet	Lesson Plan		[0]
Introduces lines, rays, line segments, and planes. More: lessons, discussions, ratings, reviews,...
Basic Terms of Geometry	Points and lines (Geometry)	Computer	Support Material		[0]
Provides illustrations and definitions of the basic terms of geometry (i.e. line, point). More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Def...	Plane (Geometry)	Computer	Support Material		[0]
Gives Euclid's original definition of a plane surface and then examines the definition's validity and durability. More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Def...	Plane (Geometry)	Computer	Support Material		[0]
Gives Euclid's original definition of surface and then examines the definition's validity and durability. More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Def...	Line (Geometry)+	Computer	Support Material		[0]
Gives Euclid's original definition that edges of a surface are lines and then examines the definition's validity and durability. More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Def...	Point (Geometry)	Computer	Support Material		[0]
Gives Euclid's original definition of a point and then examines the definition's validity and durability. More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Def...	Line (Geometry)	Computer	Support Material		[1]
Gives Euclid's original definition that the ends of a line are points and then examines the definition's validity and durability. More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Def...	Line (Geometry)	Computer	Support Material		[2]
Gives Euclid's original definition of a straight line and then examines the definition's validity and durability. More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book 5, Def...	Line (Geometry)	Java Applet	Support Material		[0]
Provides Euclid's definition outlining how magnitudes can have a ratio which can be multiplied. The guide then examines the structure of the definition. The To reset the applet, press "r" while your... More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book 5, Def...	Line (Geometry)	Java Applet	Support Material		[0]
Provides Euclid's defition outlining how magnitudes can be organized by ratio order (greater or less than). The guide then examines the structure of the defintion. The To reset the applet, press "r"... More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Com...	Points and lines (Geometry)	Java Applet	Support Material		[0]
Five of Euclid's common notions on equality - refering to magnitudes including lines, angles, plane figures, and solid figures. More: lessons, discussions, ratings, reviews,...
Distance from a point to horiz...	Point (Geometry)+	Calculator	Tool		[0]
An interactive applet and associated web page that demonstrate how to find the perpendicular distance between a point and a line that is either vertical or horizontal, given the coordinates of... More: lessons, discussions, ratings, reviews,...
Euler line - Math Open Referen...	Line (Geometry)	Computer	Tool		[0]
An interactive applet and associated web page that describe the Euler line. It shows a triangle whose vertices can be dragged. As you drag them, the centroid, circumcenter and orthocenter mov... More: lessons, discussions, ratings, reviews,...
Geometria	Points and lines (Geometry)	Computer	Tool		[0]
Geometria is free (GPL) cross-platform software based on a two-role (teacher, student) model. The teacher creates a problem, provides it with an answer and saves the problem in a file. The student ope... More: lessons, discussions, ratings, reviews,...
Bottomless Worksheet of Length...	Line (Geometry)	Flash	Tool		[0]
This Flash program gives students endless practice on calculating the length of a line segment bounded by two points. It randomly generates ten sets of points and the corresponding answer sheets on sc... More: lessons, discussions, ratings, reviews,...
Bottomless Worksheet of Midpoi...	Line (Geometry)	Flash	Tool		[1]
This Flash program gives students endless practice on finding the midpoint of a line segment bounded by two points. It randomly generates ten sets of points and an answer key, which you can print out ... More: lessons, discussions, ratings, reviews,...
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