Proof in Ancient Mathematical Texts I and II (INTEG 120 and INTEG 121)

Euclid Text - Greek / English

Here is a PDF of The Elements in Greek and English

Illustrated Euclid Elements

Here is an online annotated and cross referenced edition of The Elements from Clark University.

Geogebra Illustrations for First Year Mathematics

Here are select Geogebra interactive illustrations for Euclid's Elements