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  Geometry Sites

Geometry Videos
http://www.math-videos-online.com/geometry-videos.html
Geometry Videos
Are you looking for free online geometry videos? Each of the following links takes you to an online video on a particular geometry topic.
Some videos are followed by online quizzes and interactive games designed to reinforce the concepts taught in each movie.
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The eyeballing game
http://woodgears.ca/eyeball/
The eyeballing game
The game works by showing you a series of geometries that need to be adjusted a little bit to make them right.
A square highlights the point that needs to be moved or adjusted. Use the mouse to drag the blue square or arrowhead where you feel it is 'right'.
Once you let go of the mouse, the computer evaluates your move, so don't let up on the mouse button until you are sure. The 'correct' geometry is also shown in green, so you can see where you went wrong.
You will be presented with each challenge three times. The table to the right shows how you did on each challenge each time.
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Geometry Links at Primary School
http://tinyurl.com/33ntc9
Geometry Links at Primary School
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Geometry from the Interactive Mathematics Miscellany
http://www.cut-the-knot.org/geometry.shtml
Geometry from the Interactive Mathematics Miscellany
A huge collection of geometric problems and discussions, many with interactive Java illustrations.
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Discovering Polygons and Polyhedra
http://internal.maths.adelaide.edu.au/people/pscott/polyhedra/index.html
Discovering Polygons and Polyhedra
An interactive introduction to polygons and polyhedra with many diagrams and applets.
Suitable for senior secondary and tertiary students.
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What's my Angle?
http://tinyurl.com/llhl9
What's my Angle?
An interactive game which develops the measuring of angles whilst encouraging children to become familiar with a protractor.
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Geometry Master
http://www.winsite.com/bin/Info?15000000036526
Geometry Master : freeware software to download
Geometry Master 3.0 is a Geometry Help software that enhances Geometrical, Spatial and Drawing skills using geometry drawing tools on the computer screen. The Geometry Worksheets & terms program comes with many excellent drawing tools, geometry terms & shapes.
The Geometry Help software runs on all Windows systems and has multiple Drawing Tools, Color Fill Options and Custom Shape Tools. It also can save the images in GMT, JPEG or BMP format.
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Mathematics Geometry Tutorials (recommended)
http://nlvm.usu.edu/en/nav/index.html
The National Library of Virtual Manipulatives (NLVM) is an NSF (USA) supported project that began in 1999 to develop a library of uniquely interactive, web-based virtual manipulatives or concept tutorials, mostly in the form of Java applets, for mathematics instruction (K-12 emphasis).
The project includes dissemination and extensive internal and external evaluation.
Math | Maths | Mathematics | interactive | multimedia | Free | Number and Operations | Algebra | Geometry | Measurement | Data Analysis | Probability |
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The Geometry of Circles
http://http://www.tcet.unt.edu/weblibrary2/?subject=mathematics
The Geometry of Circles
Spice up a dull geometry lesson and let your students test themselves. Students become technologically involved in identifying the parts of a circle and calculating the circumference and area of circles in this lesson.
They utilize interactive websites to learn the information, and then, create a PowerPoint presentation or Classroom Performance System test with digital camera pictures to test themselves.
resources | standards | video |
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The Diamond Theorem
http://geocities.com/timefold/
A group of 322,560 transformations preserves symmetry in a set of 840 two-color 4x4 patterns.
The group plays an important role in one construction of the large Mathieu group.
The patterns illustrate properties of a finite geometry and orthogonality properties of Latin squares.
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Geometry meets Poetry
http://newman.needham.k12.ma.us/learningmaps/webquests/new_math_poetry/main.htm
Geometry meets Poetry
Your role will be to merge geometry with poetry, and create an animated gif that reflects the changes your selected geometric concept goes through!
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Mathematical Patterns in African American Hairstyles
http://www.math.buffalo.edu/mad/special/gilmer-gloria_HAIRSTYLES.html
Mathematical Patterns in African American Hairstyles
Ethnomathematics is the study of such mathematical ideas involved in the cultural practices of a people. Its richness is in exploring both the mathematical and educational potential of these same practices.
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Ruler and Compass
http://www.literka.addr.com
Pictures and descriptions of polyhedrons, applets showing cross sections of polytopes.
Everything on computer? screen, geometrical constructions with a ruler and a compass.
This program is free. You can download it now.
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Geometry in Motion
http://www15.addr.com/~dscher/
Geometry in Motion
This site provides direct interaction with geometric diagrams, courtesy of Java Sketchpad.
Intersecting Circles | The Falling Ladder | The Sliding Triangle | The Bent Straw | The Folded Circle | Van Schooten's Ellipse | Congruent Triangles |Concentric Circles | Tangent Circles | The Folded Rectangle | The Taut String | Van Schooten's Parabola | The Expanding Circle | Van Schooten's Hyperbola | Tangent Circles, Part 2 | Congruent Triangles, Part 2 | Pantograph of Sylvester |
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Geometry Help at FreeMathsHelp
http://www.freemathhelp.com/geometry.html
Geometry Help at FreeMathsHelp
Area of a Circle | Areas, Volumes, Surface Areas | Circumference of a Circle | Graphing Lines | Interior Angles of Regular Polygons | Polygon Basics | Pythagorean Theorem | Slope of a Line | Three-Dimensional Figures |
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Tims Triangular Page
http://sakharov.net/triangle.html
Tim's Triangular Page
All necessary information about triangles for school students
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Geometry at AAAMath
http://www.aaamath.com/B/geo.htm
Geometry at AAAMath - These pages teach geometry facts covered in K8 math courses. Each page has an explanation, interactive practice and challenge games about geometry.
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Aplusmaths
http://aplusmath.com
Fun, Easy, and Quick to learn activites
Visit our game room and play exciting games like Matho and Hidden Picture...Test your math skills with our Flashcards! Try out the Math Word Find puzzle.
Create and print your own set of flashcards online! Try out the Flashcard Creator. See the Worksheets section, where you can print worksheets to practice offline.
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Geometry from the Land of the Incas
http://agutie.homestead.com
Geometry Step by Step from the Land of the Incas provides an eclectic mix of sound, science, and Incan history intended to interest students in Euclidean geometry. Recent additions include Simson Line (proof of Simson line), The Raft of the Medusa (problem solving with fractals and animation), Archimedes and the Rhombicuboctahedron (Archimedes the Geometer), Sierpinski Triangle and Machu Picchu (fractal illustration), Johnson's Theorem (three equal circles pass through a common point), Varignon and Wittenbauer Paralellograms (quadrilateral: midpoints and trisection points of the edges) and Van Aubel's Theorem (quadrilateral with squares).
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Venn Diagram - interactive tool (not just geometry)
http://www.readwritethink.org/student_mat/
Venn Diagram ... not just geometry but relevant to ALL subjects
This helpful interactive tool allows students to create Venn Diagrams specific to a project or activity by identifying and recording concepts that can be placed on the appropriate area of the diagram. Students may edit and print the finished diagrams.
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Puzzles with polyhedra and numbers
http://gfm.cii.fc.ul.pt/Members/JR.en.html
In this site one can print copies of polyhedron puzzles (for non-commercial purposes only) and one can read several mathematical articles on the subject.
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Geometry Glossary
http://library.thinkquest.org/2647/geometry/glossary.htm?tqskip1=1&tqtime=0413
Geometry Glossary
Welcome the the Geometry Glossary. In this glossary I'll define most of the words you'll ever need in geometry. You'll also see some algebra terms, and maybe some trig terms. If I've missed some, be sure to e-mail me. Caution: This is a graphics-intense page, although almost all of them are small.
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Introduction to Geometry
http://library.thinkquest.org/2647/geometry/intro/intro.htm
Introduction to Geometry
Welcome to Geometry! Here is where we'll cover all of the basics of Geometry.
Points | Lines, Planes, and Space | Postulates and Theorems | Understanding Proofs | Sample Problems | Glossary |
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Geometry Flash Cards
http://www.aplusmath.com/cgi-bin/flashcards/geoflash
Geometry Flash Cards Online
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Paper Models of Polyhedra
http://www.korthalsaltes.com/
Polyhedra are beautiful 3-D geometrical figures that have fascinated philosophers, mathematicians and artists for millennia.
On this site are more than eighty paper models available for free.
Paper Models of Polyhedra | Platonic Solids | Archimedean Solids | Kepler-Poinsot Polyhedra | Prism and Antiprism | Kaleidocycles | Cylinder | Tapered Cylinder Cone | Special Cones | "Matryoska house" | Globe | Chevaux-de-frise | Dodecahedron | Cube and Tetrahedron | Octahedron | Icosahedron | Triangular Prism | Pentagonal Prism | Pentagonal Antiprism | Icosahedron | Compound of Two Cubes | Compound of Three Cubes | Pentakisdodecahedron |
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Geometric Shapes and Figures : 4 2 Explore
http://www.eduscapes.com/42explore/geomet.htm
On each page you'll find definitions, activities, 4 good starting points, and many more links and resources for the thematic topic.
In some cases, we've listed more than four websites on a particular topic. For example, we might provide a few for younger readers and others for more advanced learners.
Each school, classroom, and teacher is unique. As such we didn't try to provide specific activities for particular grade levels. Instead we suggest that teachers explore each link, then design specific, developmentally appropriate activities such as discussion questions, small group activities, or webquests to fit the needs of their curriculum.
The links on this site are safe for children.
Tessellations | Maths | Maths | patterns | pattern | On each page you'll find definitions, activities, 4 good starting points, and many more links and resources for the thematic topic.
In some cases, we've listed more than four websites on a particular topic. For example, we might provide a few for younger readers and others for more advanced learners.
Each school, classroom, and teacher is unique. As such we didn't try to provide specific activities for particular grade levels. Instead we suggest that teachers explore each link, then design specific, developmentally appropriate activities such as discussion questions, small group activities, or webquests to fit the needs of their curriculum.
The links on this site are safe for children.
Geometric | Shapes | Figures | Geometry |
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Interactive Maths Geometry - All Grades/Classes
http://matti.usu.edu/nlvm/enu/navd/topic_t_3.html
Virtual manipulatives related to the NCTM Geometry standard.
Geoboard | Isometric Geoboard | Platonic Solids | Ladybug Leaf | Ladybug Mazes | Tesselations | Pythagorean Theorem | Similar Triangles | Coordinate Geoboard | Isometry Transformations | Composition Transformations | Iterative Fractals | Koch Triangle | Circular Geoboard | Cob Web Plot | Golden Rectangle | Polygon Fractals |
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Areas, Volumes, Surface Areas
http://www.sisweb.com/math/geometry/areasvols.htm
Reference sheet on Areas, Volumes, Surface Areas
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Dositey Educational Site
http://www.dositey.com/
Free, interactive, fun, easy-to-use mini-lessons, games, exercises, printable worksheets and much more..
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Polygons
http://www.microworlds.com/library/math/polygons/index.html
Set the sides slider to the amount of sides in your polygon. Set the angle slider to the degrees the turtle has to turn for each angle. Click on the turtle to try it out.
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A Plus Student
http://www.aplusstudent.com/
This site has hundreds of interactive math lessons with great graphics, animation and audio. Math courses range from kindergarten to high school including pre-algebra, algebra, and geometry. There are three distinct designs addressing the needs of elementary, middle, and high schools. Each lesson has exercises and quizzes that are scored and the progress is tracked so that parents can monitor the progress of their children. Free registration gives access to all lessons. Paid registration gives access to exercises/quizzes and scoring.
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Welcome to Create-A-Venn
http://www.venndiagram.com/venn01.html
An interactive site for creating Venn diagrams..... (ummm maybe not geometry)
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Shamblesguru Geometry Video Picks on YouTube
http://tr.im/n1Sd
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