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| | Algebra - Math, School Time, Kids and Teens 15
 Areas, Volumes, Surface AreasAreas, Volumes, Surface Areas
 [ Teens ]Use these simple illustrated formulas to calculate volume and surface area of various shapes.
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Brain Teasers: Geometry PuzzlesBrain Teasers: Geometry Puzzles
 [ Teens/Mature Teens ]Slice and complete various figures to form requested shapes.
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Cynthia Lanius' Lessons: Geometry OnlineCynthia Lanius' Lessons: Geometry Online
 [ Teens/Mature Teens ]Have fun learning through activities about polygons, triangles, circles, and the volume of cylinders. Page includes an historic timeline, SAT type quiz, and glossary of terms.
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The Everlasting PiThe Everlasting Pi
 [ Teens/Mature Teens ]The history, uses,and creator of pi and also some fun facts, jokes and songs.
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Figures and PolygonsFigures and Polygons
 [ Kids/Teens/Mature Teens ]Shows different types of straight-sided shapes with up to ten sides. Gives the total number of degrees for each side.
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Fugues of the Well-Tempered ClavierFugues of the Well-Tempered Clavier
 [ Kids/Teens/Mature Teens ]Interactive Director movie comparing a fugue by Johann Sebastian Bach to a Möbius strip.
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GeometriaGeometria
 [ Teens/Mature Teens ]A program for computing lines, surfaces and volumes of the main plane and solid figures, through direct and indirect formulas. Includes multiple languages.
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GeometryGeometry
 [ Kids/Teens ]Explains and describes geometric terms, measurement of angles, types of figures, coordinate graphs, areas and volumes.
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GeometryGeometry
 [ Teens ]Games, illustrations, and definitions.
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Geometry from the Land of the IncasGeometry from the Land of the Incas
 [ Teens/Mature Teens ]Presents problems involving circles and triangles, with proofs, SAT practice quizzes and famous quotes. Also, has examples of geometry in Peruvian culture.
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Introduction to the Works of EuclidIntroduction to the Works of Euclid
 [ Teens/Mature Teens ]Covers the life of Euclid and a discussion of Euclidean geometry.
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Mad MathsMad Maths
 [ Mature Teens ]Contains proposed mathematical theorems in a fun way.
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Point Out the ViewPoint Out the View
 [ Kids/Teens ]Use visualization to determine how four different people see a set of 3-D blocks. From PBS Kids.
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The Pythagorean Theorem LessonThe Pythagorean Theorem Lesson
 [ Teens ]A lesson on the pythagorean theorem with the objective that the you will discover for yourself the actual theorem.
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Spaceship BuilderSpaceship Builder
 [ Kids ]Use a virtual geoboard to help Dr. Marbles design a new fleet of cyberspace ships. From PBS Kids.
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Spaghetti and Meatballs For AllSpaghetti and Meatballs For All
 [ Kids ]Webquest for 3rd-8th graders comparing the perimeter and area of rectangles. Relates to the book "Spaghetti and Meatballs For All!" by Marilyn Burns.
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TangramsTangrams
 [ Kids/Teens ]Choose a puzzle, then click and drag virtual tangram pieces to solve it. From PBS.
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Teen Math Whizzes Go Euclid One BetterTeen Math Whizzes Go Euclid One Better
 [ Mature Teens ]Features a discussion about the works of two teenagers, David Goldenheim and Daniel Litchfieldm, from Connecticut. They helped find a solution that eluded Euclid in finding a method to partition a line into any number of equal sections.
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Tim's Triangular PageTim's Triangular Page
 [ Teens/Mature Teens ]Learn about the basic properties, formulas, theorems and different types of triangles. Includes proofs and illustrations.
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