Lecture 8: Silhouette folding and gift wrapping, universality, efficiency, seam placement, cube wrapping, checkerboard folding; tree method, margulis napkin problem
Page 3: Challenges in efficiency: cube wrapping, k-by-k checkerboard folding
You can view Marc Kirschenbaum's diagrams of a seamless (1/5) 8-by-8 chessboard.
These are rough, personal lecture notes handwritten by Erik Demaine used during lecture. Their primary purpose is for reading/review by students of the class.