Geometry, Theorems and Problems -
Index
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Problems. |
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School, College
Geometry - Index. |
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Geometry Types, Methodologies, Terminologies
Interactive Mind Map and News.
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Definitions. |
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Points, Theorems and Problems - Index. |
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Lines. Theorems and Problems. |
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Angles. Theorems and Problems. |
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Angle Bisector. Theorems and Problems. |
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Acute Angle in the Real World - Slideshow. |
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Obtuse Angle. Theorems and Problems. |
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Angles: 30, 60, 120 degrees. |
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Angles: 45, 135 degrees. |
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Parallel lines. |
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Perpendicular lines. |
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Perpendicular
Bisector. |
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Concurrent lines. |
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Transversal Lines. |
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Collinear Points.
Theorems and Problems |
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Midpoints.
Theorems and Problems |
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Trisecting a Line Segment.
Theorems and Problems |
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Triangles. |
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Equilateral Triangles. |
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Isosceles Triangle. |
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Isosceles Triangle 80-20-80. |
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Right Triangle. |
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Special Right Triangles.
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Special Right Triangle 30-60.
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Metric Relations in a Right Triangle, Theorems and Problems. |
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Obtuse Triangle. |
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Altitude Index.
Theorems and Problems. |
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Median Index.
Theorems and Problems. |
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Semiperimeter, Perimeter Index.
Theorems and Problems. |
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Heron's Formula.
Key facts and
a purely geometric
step-by-step proof.
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Triangle with Double Angle, Theorems and Problems, Index
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Triangle and
Squares. |
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Quadrilaterals. |
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Parallelograms Index.
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Square. |
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Rectangle.
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Rhombus.
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Trapezoids.
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Median of a Trapezoid, Theorems and Problems.
Index.
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Cyclic Quadrilateral.
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Ptolemy's Theorems and Problems - Index. |
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Brahmagupta Theorem and Problems - Index
Brahmagupta (598–668) was an Indian mathematician and astronomer who discovered a neat formula for the area of a cyclic quadrilateral. |
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Tangential or Circumscribed Quadrilateral
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Equilic Quadrilateral.
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Complete Quadrilateral Index.
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Polygons. |
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Pentagons. |
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Hexagons. |
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Heptagons. |
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Octagons. |
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Nonagon or Enneagon. |
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Decagon. Theorems and Problems |
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Circles. |
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Circular Sector. Index.
Theorems and Problems.
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Arbelos, Theorems and Problems
Three tangent semicircles with collinear
centers.
Index |
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Archimedes'
Book of Lemmas
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Lunes of Hippocrates
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Intersecting Circles Index.
Theorems and Problems. |
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Tangent Circles Index
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Intersection of a Line with a Circle
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Pi
Day.
Saturday, March 14, 2009 = 3.14
It's time to get irrational. Tomorrow is Pi Day, when mathematicians
will gather to celebrate the mystery of science's most famous strange
number. |
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Mascheroni construction with compass alone. Index
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Triangle Centers.
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Centroid /Barycenter. Index.
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Circumcenter. Index.
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Incenter. Index.
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Excenter. Index.
Excircle, Exradius.
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Orthocenter. Index.
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Circumcircle
Index.
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Distances between Triangle Centers
Index.
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Congruence. Index.
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Similarity, Ratios, Proportions.
Index.
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Areas Index. |
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Area
of a Triangle Index.
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Area of
a Square Index.
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Classical
Theorems. |
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Solid Geometry. |
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Mean in Geometry.
Index. |
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Complete
List of Go Geometry Problems.
Go Geometry Problems. |
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Geometry Problems - Visual Index. |
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Ten
Geometry Problems, Visual Index |
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Geometry Problems
Gallery Index
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Geometria en Espanol,
Teoremas y Problemas en
Espanol.
(Spanish-language version) |
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Problemas Propuestos de
Geometria en Espanol. |
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Archimedes.
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Geometry Videos Index |
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Fractal Geometry
Index. |
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Hyperbolic
Geometry Index. |
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Computational Geometry
- Index
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Discrete Differential Geometry
Index
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Topology - Index
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Polyomino Word Cloud and News. |
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Euclid's Elements
Book I, 23 Definitions. One-page visual illustration.
Euclid's Elements Book.
Index |
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Geoboard for iPad Index.
This virtual version is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use iPod Touches, iPhones, or iPads |
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Euclidean Geometry Selections. |
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Crop
Circles and Complexity
Crop
Circles and Sacred Geometry
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Sacred Geometry.
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Geometry Word Cloud
Index. |
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Tessellations. |
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The Geometry of Sprawl: Sun City, AZ, Geometric Sociology - Map and News. |
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Kaleidoscopes Index.
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Geometry
Projects Brainstorming. |
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Geometric Art.
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Great
Paintings
- Index
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Geometry
for Children. |
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Geometry in the Real World - Index. |
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Sangaku Japanese Geometry.
Seventeenth and nineteenth centuries. |
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Montessori
Method - Index.
The Montessori method is an approach to educating children based on the research and experiences of Italian physician and educator Maria Montessori (1870–1952).
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Montessori
Students: Google Founders Experience - Video and News.
Larry Page and Sergey Brin discuss their experience as Montessori students.
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Steiner-Waldorf Education Index. |
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Saturn and Geometry
Index. |
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Software Index. |
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Dynamic Geometry. |
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Dynamic Geometry Software: GeoGebra 3.2 Help Document
GeoGebra is a dynamic geometry software. Constructions can be made with points, vectors, segments, lines, polygons, conic sections, and functions.
Interactive Mind Map |
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Geometry Expressions. |
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TracenPoche Interactive Geometry Software Applications. |
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iPad Apps, Index.
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Wolfram
Mathematica Software. |
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Wolfram Demonstrations Project & GoGeometry.
Interact with demonstrations using the free Mathematica Player |
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Wolfram Alpha Examples, Mathematics, Geometry, Interactive Mind Map. |
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Surfing: Tube Wave,
Index.
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Geometry Mind Mapping -
Index |
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SAT
Math Practice,
Index.
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Golden Rectangles. |
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Go Geometry
Education Index |
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Van Hiele Model
Index
In mathematics education, the Van Hiele model is a theory that describes how
students learn geometry. |
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Explore the Geometry of the Human Anatomy.
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Geometry Online - Table of
Content
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