Famous Scientists
Famous Scientists: Euclid
Learn about the Greek scientist best known as the author of the Elements, the oldest book consisting of geometrical theorems which is considered to be a standard for logical exposition.
Dartmouth College
Dartmouth College: The Different Styles of Euclid and Copernicus
A history of the differences between Euclid's and Copernicus's methods of proving geometric ideas.
Jim Loy
Jimloy.com: Saccheri
This site explains the Saccheri quadrilateral and the importance of his work in geometry.
Curated OER
Math Open Reference: Biography of Euclid
Biography of Euclid, a Greek Mathematician, also known as the 'Father of Geometry'.
Curated OER
Math Open Reference: Biography of Euclid
Biography of Euclid, a Greek Mathematician, also known as the 'Father of Geometry'.
Curated OER
University of St Andrews: Euclid Father of Geometry
This site, which is provided for by the University of St Andrews , gives a biography of Euclid as well as details of his contributions to mathematics.
Math Open Reference
Math Open Reference: Constructions
Learn about drawing shapes using only a compass and straight edge or ruler with out measuring any lengths or angles.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Euclid
Euclid, a great mathematician, wrote the first systematic textbook on geometry.
University of St. Andrews (UK)
University of St. Andrews: Galileo Galilei
This site from the University of St. Andrews contains biographical information about Galileo's life and studies.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Polyhedrons
This in-depth paper examines the idea of convexity. Euclid's Elements, the first geometry textbook, assumed convexity without mentioning the term.
Khan Academy
Khan Academy: Geometric Definitions
Check your understanding of the definitions of geometry terms in this exercise. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.