This proceedings includes the following papers: (1) "Structure of Attention in Teaching Mathematics" (John Mason); (2) "Communicating Mathematics or Mathematics Storytelling" (Kathy Heinrich); (3) "Assessing Mathematical Thinking" (Florence Glanfield and Pat Rogers); (4) "From Theory to Observational Data (and Back Again)" (Carolyn Kieran and Jo Towers); (5) "Bringing Ethnomathematics into the Classroom in a Meaningful Way" (Kgomotso Garegae-Garekwe); (6) "Mathematical Software for the Undergraduate Curriculum" (Frederic Gourdeau, Michael B. Monagan, and Joel Hillel); (7) "Professional Development for Preservice Mathematics Teachers" (Nadine Bednarz and Linda Gattuso); (8) "How Does the Achievement of Canadian Students Compare to That of Students in Other Countries?" (David Robitaille); (9) "The Commonsense of Teaching" (David Wheeler); (10) "A Look at the Conference Logo" (Klaus Hoechsmann); (11) "Preservice Primary Teachers' Beliefs about Mathematics and Levels of Cognitive Functioning" (Sandra Frid); (12) "Where Do I Want Students' Attention? And What Can I Do To Affect Their Attention?" (Dave Hewitt); (13) "Impact Math: A Mathematics Reform Project for Ontario Grade 7 and 8 Teachers" (Doug McDougall); (14) "A Man Left Albuquerque Heading East: Word Problems as Foundational Narrative in Mathematics Education" (Susan Gerofsky); (15) "Learning Algebra Personally" (Ralph Mason); (16) "Exemplary Mathematics Teachers: Subject Conceptions and Instructional Practices" (Geoffrey Roulet); (17) "Recognizing and Supporting Children's Conceptions of Number" (Heather Kelleher); and (18) "Learning to Teach Prospective Teachers: A Teacher Educator's View" (Cynthia Nicol). (ASK)