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geometry

geometrygeometryOnline and interactive
Changing the way geometry is taught
Changing the way geometry is learnt

Try one of the following three courses, each of which is a comprehensive study of one large area of geometry. Everything uses online interactive resources provided here - no extra programs are required.
transformations Interactive Construction an online course... points, lines, circles, perpendiculars, bisectors, Euclid, irrationals...
shape Interactive Transformations an online course... reflections, rotations, translations, enlargements...
construction Interactive Shape an online course... polygons, circles, classifying, locus, congruence...

Or you could try one of these topics...
Transformations : a varied collection of resources
Euclid's elements: the 48 propositions from Book 1
sacred geometry: philosophy and practice
The hidden world of triangles and circles
Circle only constructions: no rulers allowed
An exploration into two circles: geometry & imaginary numbers
Pythagoras' theorem: proofs and problems		 Is this a square?: how to decide
The egg project: how to construct Euclidian eggs
Circle theorems: six properties
Geometry in 3 dimensions: solid shapes
The incircle: unexpected properties
Feynman's lost lecture: the motion of the planets around the sun
Recommended books An interactive glossary Take this Geometry tour Policy statement
Interactive geometry powered by Cinderella and JavaSketchpad and CabriJava and C.a.R.

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