


[ Teens ]  Use these simple illustrated formulas to calculate volume and surface area of various shapes.
http://math2.org/math/geometry/areasvols.htm

[ 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.
http://math.rice.edu/~lanius/Geom/

[ Kids/Teens/Mature Teens ]  Shows different types of straightsided shapes with up to ten sides. Gives the total number of degrees for each side.
http://www.mathleague.com/help/geometry/polygons.htm

[ Kids/Teens/Mature Teens ]  Interactive Director movie comparing a fugue by Johann Sebastian Bach to a M?bius strip.
http://jan.ucc.nau.edu/~tas3/wtc/i10.html

[ 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.
http://www.ElvenKids.com/tools/geometria/Geometria.php

[ Kids/Teens ]  Explains and describes geometric terms, measurement of angles, types of figures, coordinate graphs, areas and volumes.
http://www.mathleague.com/help/geometry/geometry.htm

[ Teens ]  Games, illustrations, and definitions.
http://www.coolmath4kids.com/geometrystuff.html

[ 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.
http://agutie.homestead.com/

[ Teens/Mature Teens ]  Covers the life of Euclid and a discussion of Euclidean geometry.
http://www.obkb.com/dcljr/euclid.html

[ 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.
http://jwilson.coe.uga.edu/Texts.Folder/GLaD/GLaD.Comments.html




