ElemMath 12 (K-6) Explained: Pappus and Pascal

Continuing with our introduction to elementary projective geometry, meant for primary school students, we discuss two of the most famous theorems in mathemat...

MathHistory1b: Pythagoras' theorem (cont.)

Pythagoras' theorem is both the oldest and the most important non-trivial theorem in mathematics. This is the second part of the first lecture of a short cou...

MathHistory5a: Number theory and algebra in Asia

After the later Alexandrian mathematicians Ptolemy and Diophantus, Greek mathematics went into decline and the focus shifted eastward. This lecture discusses...

WT31: Introduction to Projective Geometry

A first look at Projective Geometry, starting with Pappus' theorem, Desargues theorem and a fundamental relation between quadrangles and quadrilaterals. This...

National Curriculum issues and opportunities for revitalizing geometry thinking in the classroom

This is a talk I (Norman Wildberger of the School of Mathematics and Statistics, UNSW) gave to the Independent Schools Heads of Departments of Mathematics me...

Desargues' Theorem: Projective Geometry.

Desargues' Theorem: Projective Geometry.

Simson's Theorem

http://demonstrations.wolfram.com/SimsonsTheorem/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. Let ABC be a...

Pascal's Theorem in Projective Geometry.

Pascal's Theorem in Projective Geometry. Pappus.

notes 14 geometry

WEBSITE: http://www.teachertube.com intro to polygons.

MathHistory7a: Analytic geometry and the continuum

The development of Cartesian geometry by Descartes and Fermat was one of the main accomplishments of the 17th century, giving a computational approach to Euc...