Everything you need to understand or teach The Elegant Universe by Brian Greene.
This book is a search for perhaps the oldest question of humanity: Why are we here? In a very literal sense, the book examines the "whys" for the physical properties that surround people in everyday life. These things are mostly taken for granted because they are so commonplace—gravity, for example. Isaac Newton formulated the "how" for gravity, but not the "why," leaving room for Einstein's formulation of special relativity...
The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest For… Lesson Plans contain 185 pages of teaching material, including: