In this unique and original book, origami is an object of mathematical exploration. The activities in this book differ from ordinary origami in that no figures of objects result. Rather, they lead the reader to study the effects of the folding and seek patterns. The experimental approach that characterizes much of science activity can be recognized throughout the book, as the manipulative nature of origami allows much experimenting, comparing, visualizing, discovering and conjecturing.
The reader is encouraged to fill in all the proofs, for his/her own satisfaction and for the sake of mathematical completeness. Thus, this book provides a useful, alternative approach for reinforcing and applying the theorems of high school mathematics.
Contents: A Point Opens the Door to Origamics; New Folds Bring Out New Theorems; Extension of the Haga s Theorems to Silver Ratio Rectangles; X-Lines with Lots of Surprises; Intrasquares and Extrasquares ; A Petal Pattern from Hexagons?; Heptagon Regions Exist?; A Wonder of Eleven Stars; Where to Go and Whom to Meet; Inspiration of Rectangular Paper.
