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SAT-type Quiz	General (Geometry)	Computer	Activity	[0]
Get familiar with SAT-type questions in geometry by taking this 10-question quiz. Your answers are graded online. More: lessons, discussions, ratings, reviews,...
Stressed Out: Slope as Rate of...	Slope (Geometry)	Computer	Activity	[1]
Several activities are provided that lead you to discover the properties of the slope of a line. More: lessons, discussions, ratings, reviews,...
Tilings and Symmetry	Transformations and symmetry (Geometry)	Computer	Activity	[0]
A set of questions for small group investigation on tilings and symmetry using the software KaleidoTile. More: lessons, discussions, ratings, reviews,...
Trigonometry Problem #1	Trigonometry (Geometry)	Computer	Activity	[1]
Trigonometry problem with instant feedback. More: lessons, discussions, ratings, reviews,...
Trigonometry Problem #2	Trigonometry (Geometry)	Computer	Activity	[1]
Trigonometry problem with instant feedback. More: lessons, discussions, ratings, reviews,...
Trigonometry Problem #3	Trigonometry (Geometry)	Computer	Activity	[0]
Trigonometry problem with instant feedback. More: lessons, discussions, ratings, reviews,...
Volume Functions	Cylinders (Geometry)	Computer	Activity	[0]
This problem asks you to think about the relationship of perimeter to volume of a cylinder. Can you figure out the maximum volume of a cylinder with a given perimeter? More: lessons, discussions, ratings, reviews,...
Area and perimeter of a rectan...	Coordinate geometry (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...	Coordinate geometry (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...	Coordinate geometry (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...	Coordinate geometry (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...	Coordinate geometry (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...	Coordinate geometry (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,...
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,...
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,...
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,...
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,...
Printable compass / straighted...	Straightedge and compass (Geometry)	Flash	Activity	[2]
A web page that contains a list of 35 printable worksheets for compass and straightedge constructions. Each printable sheet has 2 or 3 problems and links back to the pages interactively explaining th... More: lessons, discussions, ratings, reviews,...
The bounding box (Coordinate ...	Coordinate geometry (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,...
Traingle area, box method (Coo...	Coordinate geometry (Geometry)+	Flash	Activity	[0]
An interactive applet and associated web page that calculate the area of a triangle using the box method in coordinate geometry. The applet has a triangle with draggable vertices. As you drag t... More: lessons, discussions, ratings, reviews,...
Triangle area, formula (Coordi...	Coordinate geometry (Geometry)+	Flash	Activity	[0]
An interactive applet and associated web page that calculate the area of a triangle using the formula method in coordinate geometry. The applet has a triangle with draggable vertices. As you dr... More: lessons, discussions, ratings, reviews,...
Why AAA does not prove congrue...	Triangles (Geometry)+	Flash	Activity	[1]
An interactive applet and associated web page that shows that angle-angle-angle (AAA) is not enough to prove congruence. The applet shows two triangles, one of which can be dragged to resize it... More: lessons, discussions, ratings, reviews,...
Why SSA does NOT prove congrue...	Triangles (Geometry)+	Flash	Activity	[1]
An interactive applet and associated web page that shows that side-side-angle is not enough to prove congruence, because two triangles can meet the condition. The applet shows two triangles, on... More: lessons, discussions, ratings, reviews,...
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