CanaDAM 2013; June 10-13, 2013, Memorial University of Newfoundland
Just how are the Clar and Fries structures of a fullerene related? PowerPoint Slides

Discrete Mathematics Day at WPI; Saturday April 20, 2013, Worcester Polytechnic Institute
When does a curve bound a distorted disk? PowerPoint Slides

SIAM Conference of Discrete Mathematics, DM12; June 18-21, 2012, Dalhousie University, Nova Scotia
Conjectures Resolved and Unresolved from Rigidity Theory. PowerPoint Slides

Computers in Scientific Discovery 5; June 19-23, 2010, University of Sheffield, England
Fullerene Features Great and Small Beamer Slides