Thales and The Egyptians
Lived about 624 BC to 547 BC in Miletus, Asia Minor (now Turkey)
Lesson Plans and Math Activities for This Topic
Thales MacTutor Bio http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Thales.html
Thales is Famous for Measuring the Height of the Great Pyramid Using Ratios
Mathematical Contributions http://www.albertson.edu/math/History/ebeck/Classical/Thales%20Pages/mathematical%20contributions.htm