Connecting with History Shop Our Categories www.rchistory.com START HERE Learn about Connecting with History Catalog Discount Program Samples Knowledge Base About Us Contact Us QUICK-START STEPS Quick-Start Video Tour 1. Select Time Period 2. Select Teacher Materials 3. Select Student Books HOMESCHOOLS CONNECTING WITH HISTORY PROGRAM Year 1 - Ancient History & Old Testament Year 2 - Early Church & Early Medieval Year 3 - High Medieval - Post-Reformation Year 4 - American History STUDENT BOOKS Year 1 - Ancient History & Old Testament Year 2 - Early Church & Early Medieval Year 3 - High Medieval - Post-Reformation Year 4 - American History Core Textbooks ONLINE CLASSES IEW & Connecting with History Online PROGRAM SUPPLEMENTS Literature Guides History Sing-Along CDs Timelines Geography Lap Books MORE SUBJECT AREAS Early Learning In the Footsteps of the Saints series Religious Education Language Arts Science History Fine Arts Modern History Resources High School Planning NEW PRODUCTS CLEARANCE SECTION CO-OPS & SCHOOLS CO-OP PROGRAM INFORMATION About Our Co-ops How to Get Started Register Your Co-op or School DIRECTORY MAP DIRECTORY LIST CO-OP CLASSROOM MATERIAL Year 1 - Ancient History & Old Testament Year 2 - Early Church & Early Medieval Year 3 - High Medieval - Early Explorers Year 4 - American History CO-OP FAMILY MATERIAL Year 1 - Ancient History & Old Testament Year 2 - Early Church & Early Medieval Year 3 - High Medieval - Early Explorers Year 4 - American History Homeschool Connections Materials QUICK-START STEPS Quick-Start Video Tour 1. Select Time Period 2. Select Teacher Materials 3. Select Student Books Customer Service Our Discount Program Knowledge Base Catalog Samples Community Register Your Copy Reviews Contact Us Our Copyright Policy Home > HOMESCHOOLS > STUDENT BOOKS > Year 1 - Ancient History & Old Testament > Complete List of Volume 1 Books > String, Straight-Edge and Shadow: The Story of Geometry Grammar/Logic Levels Core Book Price: $16.95 Description More Information Using only three simple tools-the string, the straightedge, and the shadow-men discovered the basic principles and constructions of elementary geometry more than two thousand years ago. This engrossing book reveals how these discoveries were made and shows how they were related to the early civilizations of Mesopotamia, Egypt and Greece. The fabric of the story is woven out of archaeological and historical records and of legends about the major men of mathematics. By re-constructing the events as they might have happened, Julia Diggins enables an attentive reader to easily follow the pattern of reasoning that leads to an ingenious proof of the Pythagorean theorem, an appreciation of the significance of the golden mean in art and architecture, and the construction of the five regular solids. Author: Julia Diggins Share your knowledge of this product. Be the first to write a review »