Today Zi-Ning taught Robert Lang's Four Intersecting Triangles! This is a simple modular that illustrates the concept of polypolyhedra, the most common of which is Tom Hull's Four Intersecting Tetrahedra.
The OrigaMIT logo is a stylicization of Typeset, an origami font designed by Jason Ku '09. Top photo depicts Tim the Beaver V2 by Michelle Fung '13. Bottom photo depicts Mens et Manus II, copyright 2007 Brian Chan '02.