Speaking engagements

I give a number of talks, lectures, after-dinner speeches, and bookstore presentations each year. Send me email for terms
and a list of talk topics. Radio, TV, and bookstore events related to a book can be arranged either with me or my publisher.

List last updated: January 1, 2024.

Talks in 2024:

March 8. 34th International Conference on Technology in Collegiate Mathematics (ICTCM), New Orleans, LA, keynote address.
May 5-31. In residence at Southern Denmark University in Odense, Denmark, as Visiting Adjunct Professor of Mathematics.

Talks in 2023:

March 13. Leadership Garage, Stanford University, CA, invited seminar presentation. [CLOSED EVENT]
April 14. Camden College, Blackwood, NJ, Data Science Symposium, keynote presentation.
April 19. Mathematics Colloquium, Sonoma State University, invited talk
April 27. Global Academy of Science and Arts (GASA), The Computer Museum, Mountain View, CA, invited talk. [CLOSED EVENT]
May 3. The Sequoias (retirement community), Woodside, CA, invited talk. [CLOSED EVENT]
June 28. The Museum of Mathematics (MoMath), New Yory, NY, invited talk in the mini-series "The Buck Stops Here". [ONLINE EVENT]
September 6-22. In residence at Southern Denmark University in Odense, Denmark, as Visiting Adjunct Professor of Mathematics.
September 13. Inaugural Lecture as Visiting Adjunct Professor of Mathematics, Southern Denmark University, Odense, Denmark. [LIVE EVENT WITH GLOBAL STREAMING]
September 26. University of Lapland "Media Education Conference 2023" (MEC23), Salla, Finland, keynote address.
October 9. Leadership Garage, Stanford University, CA, invited seminar presentation. [CLOSED EVENT]
November 13. Workshop on "Mathematics: Evolved or Eternal?", Beyond Center for Fundamental Concepts in Science, Arizona State University, Tempe, AZ, invited talk.

Talks in 2022:

September 21. Southern Denmark University, Odense, Denmark, university-wide lecture [ONLINE PRESENTATION]
September 26. Leadership Garage, SAP headquarters, Palo Alto, CA, invited presentation [CLOSED EVENT]

Talks in 2021:

No engagements this year due to the COVID-19 pandemic and personal circumstances.

Talks in 2020:

January 17. Joint Mathematics Meetings, Denver, CO, panelist. [Conference resistration required]
March 9. Leadership Garage, Stanford University, invited speaker. [Closed event]
March 27. Mathematical Association of America Texas Section Annual Meeting, University of North Texas, Denton, TX, keynote speaker. [CANCELLED DUE TO COVID-19 PANDEMIC]
April 23. "21st century math: Engaging online students in Multi-sensory learning", IES/MidSchoolMath online conference for math teachers. Opening keynote speaker. [Online event]
April 27 - May 15. Fulbright Specialist Speaker in Estonia, hosted by the University of Tartu. Various talks around Estonia. [POSTPONED DUE TO COVID-10 PANDEMIC]
July 30. Mexican Mathematics Teachers National Conference, Mexico City, keynote speaker. [CONFERENCE MOVED TO ONLINE DUE TO COVID-19 PANDEMIC]
October 22. World Learning Summit, Agder University, Kristiansand, Norway, keynote speaker [ONLINE EVENT]

Talks in 2019:

January 7-9. Nueva School Intersession, instructor, Nueva School, San Mateo, CA. [Closed event]
February 7. Assoc. of Mathematics Teachers of New Jersey Annual Conference, Monroe, NJ, keynote speaker.
February 14,am. Business Finland, Stanford Visitors Alumni event, Helsinki, Finland, keynote speaker.
February 14,pm. CLIC Event, "The possibilities and challenges of using artificial intelligence in knowledge creation in companies", Helsinki, Finland, speaker.
February 15. Helsinki-Beijing-Stanford Research Triangle Workshop on AI in Education, University of Helsinki, Helsinki, Finland, participant.
March 19 - April 5. Seelye Fellow, University of Aukland, New Zealand, miscellaneous engagements.
April 24. Christie's Special Event, public talk on Luca Pacioli's landmark text "Summa de arithmetica", Minnesota Street Project, 1275 Minnesota St., San Francisco, CA.
May 13-17. Set Theory Conference, University of Toronto, Canada, invited speaker.
May 15. Fields Institute Public Lecture, Fields Institute, Toronto, Canada.
June 5-12. World Learning Summit 2019, Kristiansand, Norway, invited participant.
June 13-14. Mexican Mathematics Teachers National Conference, Mexico City, keynote speaker [by video].
September 23 - December 13. Leverhulme Distinguished Visiting Professor, University of Huddersfield, England. Evening public talks on October 23 and November 13.
December 2. The British Academy, London, UK, Evening public panel discussion on STEM education.
December 4. The Knowledge Lab, London, UK, Research seminar on game-based learning. [CANCELLED]

Talks in 2018:

January 3-5. Nueva School Intersession, instructor, Nueva School, San Mateo, CA. [Closed event]
January 12. Joint Mathematics Meetings, San Diego, CA. Panelist.
February 26 - March 1. Belgrade, Serbia. Public Lecture Series, sponsored and supported by the Embassy of the United States.
March 15. Cafe Scientifique Silicon Valley, invited Public Talk, HanaHaus, Palo Alto, CA.
March 21-25. World Science Festival – Australia, Brisbane, Queensland, Australia, guest speaker
April 21. A Company of Authors, Stanford Humanities Center, Stanford, CA, invited author/speaker
May 25. Global Conference on "Mathematics for the 21st Century", International School of Geneva, Geneva, Switzerland, keynote speaker
June 5-8. Education planning summit (closed event), University of Agder, Kristiansand, Norway, invited participant
June 12. Future Insight 2030, major world trends in technology, Oslo, Norway, invited speaker.
June 13. World Learning Summit, 2018 Oslo Roundtable, Oslo, Norway, invited speaker.
September 20. TalTechDigital Conference, Estonian Republic 100th Anniversary Celebration, Tallinn University of Technology, Tallinn, Estonia, invited TED-style talk.
September 21. Tartu University, Tartu, Estonia, public talk.
October 6. Global Math Week 2018, Kickoff Event, San Jose, CA. Introductory remarks.
November 10-11, Workshop on Diagrammatic Reasoning, University of Newcastle, NSW, Australia. Keynote address.
November 12-16, Invited Lecture Mini-series on Mathematical Thought, Priority Research Centre for Computer-Assisted Research Mathematics and its Applications (CARMA) at the University of Newcastle, NSW, Australia.

Talks in 2017:

February 12. Situation Theory Mini-Conference, CSLI, Stanford University, Stanford, CA, speaker.
February 19. American Association for the Advancement of Science, Featured Presentation, Boston, MA
February 27. Symbolic Systems Forum, Stanford University, Stanford, CA, invited seminar talk
March 7. Leadership Garage, invited workshop presentation, Stanford, CA. [Closed event]
March 8. Google Book Talk, Google Headquarters, Mountain View, CA, invited talk. [Google personnel only]
March 17. Splunk weekly talk series, Splunk HQ, San Francisco, CA. [Closed event]
March 21. Book talk - Finding Fibonacci, Keplers Books, Menlo Park, CA
May 2. The James H. Fogelson Memorial Symposium, Trinity School, New York, NY, Symposium Keynote Address [Closed event]
May 9-11. May Month of Mathematics (M3), Belgrade, Serbia, Opening Address and other events. [POSTPONED TO 2018]
May 22-23. New Directions in Elementary Mathematics Education Symposium, University of Southern California, invited speaker [WITHDRAWN FOR PERSONAL REASONS]
June 6-9. Future Learning Lab Annual Summit, Kristiansand, Norway, invited speaker [WITHDRAWN FOR PERSONAL REASONS]
June 17. Museum of Mathematics, Manhatten, public talk and book signing (Finding Fibonacci), New York, NY
August 10. The Commonwealth Club, San Francisco, public talk and book signing (Finding Fibonacci), San Francisco, CA
September 21-23. St Peters College, Adelaide, Australia, classroom visits [Closed event]
September 25-29. Jonathan Borwein Commemorative Conference, keynote speaker, Newcastle University, Newcastle NSW, Australia
October 3. Public lecture, University of Sydney, Sydney, NSW, Australia
October 12. Invited public talk, Mathematical Association of America, Washington D.C.
October 14. Fibonacci Conference, Bucknell University, PA, keynote address
October 17. Stanford Continuing Studies Public Lecture, Stanford University, Stanford, CA.
October 20. Innovative Learning Conference, Nueva School, Hillsborough, CA, invited speaker
October 24. Museum of Mathematics Gala Banquet, New York City, NY, featured event, "The Unfiltered Math Guy," with NPR Weekend Edition host Scott Simon [invitation only]
November 2. 2017-18 Annual Serge Lang Lecture, Department of Mathematics, University of California at Berkeley, Berkeley, CA
November 27-28. Media Education Conference (MEC 2017), keynote talk, University of Lapland, Rovaniemi, Finland
November 29, CICERO Meeting, invited talk, University of Helsinki, Helsinki, Finland
November 30, invited talk, University of Tampere at Pori, Pori, Finland

Talks in 2016:

January 21. Silicon Vikings, "EdTech Journeys: Future Perspectives of Experienced Practitioners" Palo Alto, CA, panelist.
February 22. Palo Alto Rotary Club, Palo Alto, CA, invited speaker.
February 24, BrianPop webinar, Internet presentation on game-based learning, presenter.
March 11-12. Teaching & Learning 2016, Washington D.C., invited speaker.
April 11. National Council of Supervisors of Mathematics, Annual National Meeting, Oakland, CA, keynote address.
April 26. Swarthmore College, annual "Kitao Lecture," Swarthmore, PA, invited lecture.
May 4. Silicon Valley Innovation Center, "Education Disrupted: Turning Technology Threats Into Innovation Opportunities", Palo Alto, CA, panelist. [POSTPONED]
May 11. "The Arithmetic of Uncertainty", Probability Management Conference, Stanford University, Stanford, CA., invited talk and panelist.
May 12. Southern Oregon University, annual "Harry S Kieval Lecture", Ashland, OR, invited lecture.
June 14-16. Sixth Annual Future Learning Lab Conference, Kristiansand, Norway, Keynote Address.
October 9. Screening of the movie The Man Who Knew Infinity with an introduction by me and audience discussion to follow. A Wonderfest presentation at the Cameo Theater in St Helena, Napa Valley, CA, starting at 3:00pm.
October 12. mediaX Workshop, Stanford, CA, presentation and discussion on Mathematical Thinking (closed event).
November 26. Institute of Logic, Language, and Computation, University of Amsterdam, Netherlands, 25th Anniversary Conference, invited address.
December 9. "Towards engagement and well-being in learning and education", CICERO Learning 2016 Conference, Helsinki, Finland, keynote address.
December 14. White House Summit on Educational Games, The White House, Washington, D.C., invited participant.
December 15-16. US Department of Education, Institute for Education Sciences invitational workshop, Washington, D.C., participant, poster presenter, and panelist.

Talks in 2015:

January 9. "Stanford interactive media and games" seminar series, Stanford, CA, invited presentation and discussion.
January 10. "Poets and Writers" public event, San Francisco, CA, panelist.
February 26. Weber State University, Ogden, UT, annual Ritchey Lecture.
March 4. Arizona State University, Tempe, AZ, Learning Sciences Institute colloquium.
March 13-14. Teaching & Learning Conference, Washington, D.C., Invited Address.
March 19. Annual Festival of Learning, Teesside University, UK, Keynote Address.
April 16. Annual mediaX Conference, Stanford, CA, panelist.
April 20. CICERO Learning Conference, Stanford University, Stanford, CA, panelist.
June 2-3. OECD Conference, Mathematics for PISA 2021, Havard University, Cambridge, MA. Invited participant (closed event).
October 16. Neuva Innovative Learning Conference, Nueva School, Hillsborough, San Mateo, CA, invited speaker.
October 23. Class Without Quizzes, Stanford University Alumni Weekend, invited class instructor.
December 1. Fair Haven School District, Fair Haven, NJ, invided talk.
December 4. Princeton University Math Club, Princeton, NJ, invited talk.
December 10. Henry Hudson Regional High School, Highlands, NJ, invited talk.

Talks in 2014:

January 17. Joint Mathematics Meetings, Baltimore, MD, Public Face of Mathematics panelist.
January 18. Joint Mathematics Meetings, Baltimore, MD, Mathematics MOOCs panelist.
January 18. Joint Mathematics Meetings, Baltimore, MD, Museum of Mathematics panelist.
February 28. MSRI Berkeley, CA. Invited talk.
March 14-15. Teaching & Learning Conference, Washington, D.C., Invited Address.
March 27-28. MidSchoolMath Conference, Santa Fe, NM. Featured Speaker (3 talks).
April 21. Evnin Public Lecture, Princeton University, NJ.
June 6-8. Miller Symposium, Marconi Conference Center, Tomales Bay, CA. Invited Discussant (closed event).
June 12-13. Fourth Annual Future Learning Lab Conference, Kristiansand, Norway, Keynote Address.
August 7. MAA MathFest, Portland, OR, MAA Invited Address.
August 8. MAA MathFest, Portland, OR, Pi Mu Epsilon Sutherland Frame Lecture.
September 20. MATRIX Conference on the Popularization of Mathematics, Dresden, Germany, Invited Address.
October 8. Stanford University, CA,mediaX Research Conference, invited presentation.
November 12. University of the Pacific, Stockton, CA. Phi Beta Kappa Lecture.
November 27. Game Development Day, University of Lapland, Rovaniemi, Finland, invited lecture.
December 1. Creative Learning Through Technology, University of Helsinki, Finland, invited lecture.
December 8-9. Center for Curriculum Redesign, Boston, MA. Invited panelist (closed event). [POSTPONED]

Talks in 2013:

January 7. Media X Conference, Stanford University, invited address.
January 9. Joint Mathematical Meetings, San Diego, invited SIG address.
January 28-February 11. Invited lecture tour in Australia as part of Mathematics of Planet Earth Year.
February 15. Conference on Fostering Creativity and Thinking Skills in Students for the 21st Century, San Francisco,CA, invited address.
February 26. IEEE CogSIMA Annual Conference, San Diego, CA, keynote address.
April 2. Butler University, Indianapolis. James J. Woods Lecture Series, invited lecture.
April 8. University of Montana, Annual President's Lecture plus a faculty seminar.
April 18-19. 3rd Annual Future Learning Lab Roundtable, University of Kristiansand, Norway. Invited address.
April 22-24. Center for Curriculum Redesign Conference: “What should students learn in the 21st Century?”, Stockholm, Sweden, invited talk.
May 20. MOOC Madness: Panel on Online Education, Technapex, San Francisco, CA.
May 31 - June 2. World Science Festival, New York City, NY, various events.
June 20. Silicon Vikings Entrepreneurship and Learning SIG, Panel discussion on the Future of Higher Education, Palo Alto, CA.
June 29. digi.lit. Panel discussion on digital publishing for authors, San Francisco, CA.
August 5-7, NBE 2013, Pyhätunturi, Finland, keynote address.
August 15. Media X, Stanford university, Opening keynote (closed event).
August 23. Valparaiso University, Indiana, Fall Faculty Workshop, keynote lecture.
August 26. Enterprise Learning Conference & Expo, Anaheim CA, invited address.
September 11. Adobe Systems Conference, San Francisco (closed event), panel discussant.
October 9. MSRI Public Events, Berkeley City College, Berkeley, CA, public talk (admission free).
October 14-15. Maths Week Ireland, public talks in Dublin and Belfast.
October 25-26. American Mathematical Society, Committee on Education, Washington, D.C., invited presentation (closed event).
October 27-30. National Academy of Engineering, Fifth Frontiers of Engineering Education symposium, Irvine, CA, invited panelist (invitation only).
November 12. Ohio University, Athens, OH, Public Lecture.
November 16. UMERC, Umeå University, Sweden, Sonja Kovalevsky Days events, public talk.
November 18-19. UMERC, Umeå University, Sweden, invited talks.

Talks in 2012:

January 10. edWeb live, interactive webcast, www.edweb.net/gaming, 4:00 PM EST.
January 13. Metropolitan Mathematics Club of Chicago, invited talk.
January 14. Payton Citywide Math Circle, Chicago, invited talk.
January 17-18. Finnish-Stanford Education Summit, Stanford University, organizer, presenter, and panelist.
January 19. Finnish-Stanford Education Research workshop, Stanford University, organizer.
February 14. Leonardo da Vinci Society of San Francisco, Museo Italo Americano, Fort Mason Center, Building C, San Francisco, CA, public talk
February 20-22. The Future of Math Education in Ohio, Columbus, OH, invited address and panelist. (Advance registration required.)
February 25. MAA Golden Section Meeting, MSRI, Berkeley, CA, invited address.
March 6. Stockholm University, Stockholm, Sweden, invited lecture.
March 7. Göteborg University, Göteborg, Sweden, invited lecture.
March 16-17. WNET Celebration of Teaching and Learning, New York City, NY, invited address.
March 25. Humanist Community of Silicon Valley, Palo Alto, CA, invited talk.
April 12. University of California at Irvine, Mathematics Colloquium talk.
April 23. West Chester University, Pennsylvania, Mathematics Colloquium talk.
April 25. National Council of Teachers of Mathematics Annual Meeting, Philadelphia, PA, panelist.
April 26. North Carolina State University, Raleigh, NC. Joseph D. Moore Distinguished Lecture.
May 3. The Vi in Palo Alto. Invited talk. (Closed event.)
May 9. SETI Institute, Mountain View, CA. Invited public lecture.
May 11. Clackamas Community College, Oregon City, Oregon. Invited web talk. (Closed event.)
May 27. The Tech Museum, San Jose, CA, in conjunction with the Commonwealth Club. Invited public talk.
July 10. MICDS Summer Teaching Institute, St Louis, MO. Invited lecture. [POSTPONED]
October 5-6. Baylor University, Waco, TX. Baylor Undergraduate Lecture Series in Mathematics. Invited lectures..
November 5. Virginia Military Institute, Lexington, VA, 2012-2013 H.B. Johnson, Jr., ’26 Distinguished Lecturer.
November 8. Association of Mathematics Teachers of New York State, Annual Conference, Rye Brook, NY. Keynote Lecture.
November 10. American Mathematical Association of Two-Year Colleges, Annual Conference, Jacksonville, FL. Invited breakfast speaker.
November 18. The Tech Museum, San Jose, CA. Public talk.
November 21-23. University of Helsinki, Finland. Invited lecture.
November 24-28. Tallinn University of Technology, Estonia. Invited lectures.
December 7-8. California Mathematics Council for Community Colleges, Monterey, CA. Keynote lecture.
December 16. The Tech Museum, San Jose, CA. Public debate.

Talks in 2011:

January 8. Joint Mathematics Meetings, New Orleans, LA, SIG Philosophy of Mathematics. Keynote address.
February 25. MAA Regional Section Meeting, Oxford, Mississippi. Keynote address
March 7-9. University of Chile, Santiago, Chile, Invited lecture.
March 14-17. Fields Institute, Toronto.Workshop on semiotics, linguistics, cognitive science, and mathematics. Invited lecture.
March 18-19. Channel Thirteen Celebration of Teaching and Learning, New York City, Invited address.
April 6. Sonoma State University, Rohnert Park, CA. Public lecture.
April 14-16. NCTM Annual Meeting, Indianapolis, IN. Invited lecture.
April 28-30. Recreational Mathematics Conference, Evora, Portugal. Invited lecture and banquet address.
May 4. San Francisco State University. Mathematics Colloquium lecture.
May 12-14. Ontario Association for Mathematics Education conference (OAME2011), Windsor, Ontario, Canada. Keynote address.
May 31. Annual MIND Research Institute Symposium, Los Angeles, CA. Keynote address.
June 3. World Science Festival, New York City. Invited panelist.
June 12-30. Nokia Visiting Professor to Finland. Various lectures at Finnish universities.
June 22. NBE 2011, Fourth international Network-Based Education Conference: "Social Media in the Middle of Nowhere", Salla, Finland. Keynote address.
July 11-14. Triple Helix Conference, Stanford, CA. Speaker/panelist.
August 9. Bay Area Fellowship Forum, Palo Alto, CA. Invited lunchtime talk.
September 6, 7. Museum of Mathematics, New York City, Public lectures.
September 19. MIND Institute educational video games workshop, Seattle, WA, Keynote address.
September 20. MIND Institute educational video games workshop, Vancouver, B.C., Canada, Keynote address. [POSTPONED]
September 21. Imagine Education educational video games workshop, Taos, NM, Keynote address.
September 28. St Michael's Episcopal School, San Mateo, CA, invited lecture.
October 6. MIND Institute educational video games workshop, Portland, OR, Keynote address. [POSTPONED]
October 7. MIND Institute educational video games workshop, Spokane, WA, Keynote address. [POSTPONED]
October 16. Royal Canadian Institute for the Advancement of Science, Toronto, ON, Canada, Sunday Lecture (public).
October 29. Viewpoint School, Calabasas, Los Angeles, CA, invited speech (closed event).
November 10. Purdue University, West Lafayette, IN, Science Journalism Laureates Conference, panelist.
November 16. Stanford Alumni Association meeting, Portland OR, invited talk.
November 30. Aalto University, Helsinki Finland, Invited Lecture (Nokia Visiting Professor to Finland).
December 2. University of Lapland, Finland, Invited Lecture (Nokia Visiting Professor to Finland).
December 5. Tartu University, Estonia, Public Lecture.
December 6. Tallinn University, Estonia, Public Lecture.
December 7. Tallinn University of Technology, Estonia, Public Lecture.
December 9. Italian Cultural Institute, London. Public lecture on Leonardo Fibonacci.
December 18. Tech Museum, San Jose, CA. Public lecture.

Talks in 2010:

January 21. Stanford University Continuing Studies Public Lecture, Stanford University, Palo Alto, CA, open evening event.
February 4. Wittenberg University, Ohio. Annual IBM Lecture. (Public event.)
February 19. American Association for the Advancement of Science Annual Meeting, San Diego Convention Center, San Diego, CA, Special Session presentation.
February 27. Stanford Alumni Association, Palm Springs, CA, luncheon talk.
March 1. Media X Seminar Series, Wallenberg Hall, Stanford University, Stanford, CA, lunchtime public talk.
March 5-6. WNET/Channel 13 Celebration of Teaching and Learning, New York City, NY, invited address.
March 25. Western Illinois University, Macomb, IL, Department of Mathematics, Logic Colloquium talk.
March 26 . Regional Conference for Mathematics Teachers, Western Illinois University, Macomb, IL, opening address.
April 10. MAA Texas Section, Abilene Christian University, Abilene, TX, invited talk.
April 30-May 1. University of Padova, Italy, Galileo Prize student presentation.
May 11. Oregon State University, Corvallis, OR, annual Lonseth Lecture.
August 19-27, International Congress of Mathematicians, Hyderabad, India, invited presentation. [WITHDRAWN DUE TO BUDGETARY RESTRICTIONS.]
September 8-11. 9th International Conference on Entertainment Computing, Seoul, Korea, keynote address, Sept 11.
September 28. Seven Hills School, Walnut Creek, CA, invited talk. (Closed event.)
October 7. NCTM Regional Conference, Denver, CO, plenary address.
October 19. Bay Area Executives Global Meetup event, "The Future of Games", Cisco Public Telepresence Suites, Santa Clara, CA, panelist. ( Ticketed event.)
November 6. Wonderfest, Bay Area Science Festival, Stanford, CA, public lecture and discussion.
November 9-12, Lecture tour of several Danish universities, Denmark.
November 15-17, Lecture tour of several Estonian universites, Estonia.
November 23. American River College, Sacramento, CA. Public lunchtime lecture.
December 15. Presidential Awards for Excellence in Mathematics and Science Teaching, Keynote Lecture, National Science Foundation, Arlington, VA. (Closed event.)

Talks in 2009:

January 21. Kehillah High School, Palo Alto, CA, invited presentation, closed event.
January 31. Kids Tech University @ Virginia Tech, Blacksburg, VA, invited talk, closed event.
February 10-12. University of Tennessee, Knoxville, TN, Public Lecture and Mathematics Colloquium talk.
February 24. Castilleja School, Palo Alto, CA, invited presentation, closed event.
February 28. John Wiley & Sons College Mathematics Education Workshop, Las Vegas, NV, plenary address.
March 5. Princeton University, Science and Technology Lunchtime Seminar Series, invited talk.
March 6-7. WNET/Channel 13 Celebration of Teaching and Learning, New York City, NY, plenary address.
March 27. Regional Conference for Mathematics Teachers, Western Illinois University, Macomb, IL, opening address. [CANCELLED DUE TO WEATHER.]
April 3-4. MAA Ohio Section, Bowling Green University, banquet address and invited talk.
May 1. State of Louisiana Literacy and Numeracy Conference, Baton Rouge, LA, keynote address.
May 15, 16, 17. 418 Project, Santa Cruz, CA. Performance of the mathematical music show "Harmonious Equations". Public event.
May 28. Stanford Alumni Asociation, Palos Verdes, CA, invited talk.
June 9. Sunnyvale Public Library, Sunnyvale, CA. Public talk (7:00PM).
July 1. MAA Distinguished Lecture Series (Public event), MAA Carriage House, Washington, D.C.
August 17-21. Science Center Hub, Borås, Sweden. Public Lecture at the opening of the Palace of Mathematics.
September 10. Cornell University, Ithaca, NY. Kieval Lecture.
September 23-26. 21C Transmedia Innovation Symposium, Seoul, Korea, invited talk.
September 29. Seven Hills School, Walnut Creek, CA, invited talk. (Closed event.)
October 6. Colby College, Waterville, ME, public lecture.
October 22-23. Annual National Conference of the CIIM (Commissione Italiana Insegnamento della Matematica), University of Verona, Italy, invited lecture.
November 12. Harvey Mudd College, Claremont, CA, Nelson Lecture.
November 20. Cognitive Science Colloquium, University of Arizona, Tucson, AZ, invited talk.

Talks in 2008:

January 27. Stanford Math Circles. Stanford University, Stanford, CA, student presentation.
February 7. Santa Clara University, Student Film Presentation, Santa Clara, CA, presentation of a math documentary with commentary.
March 7. WNET/Channel 13 Celebration of Teaching and Learning, New York City, NY, plenary address.
March 11. Mastercard Advisors Event: The Future of Commerce, Ritz-Carlton Hotel, Orlando, FL, speaker/panelist. (Closed event)
March 17. Ask a Scientist, Axis Cafe, 1201 8th St, San Francisco, CA. Film presentation and discussion, in cooperation with KQED-tv.
April 22. Stanford Alumni Association, Austin, TX, guest lecture. (Closed event)
June 4. Silicon Valley Education Forum, Santa Clara, CA, panelist.
June 12. Stockwell Primary School, Hull, England. (Closed event)
June 15. Computability in Europe 2008 conference, Athens, Greece, Opening Address.
June 23. Stanford University Office of Science Outreach Summer Research Fellowship Program for Teachers, Stanford, CA, invited lecture.
July 2. MAA Distinguished Lecture Series (Public event), MAA Carriage House, Washington, D.C.
June 30-July 3. MAA Workshop on Expository Mathematical Writing, MAA Carriage House, Washington, D.C., speaker/instructor.
August 4-7. Stanford Summer Teachers Institute, Stanford, CA, plenary lecture and interactive workshop instructor.
September 18. Seven Hills School, Walnut Creek, CA, invited talk. (Closed event.)
September 30. Warwick's Bookstore, San Diego, CA, public presentation.
October 1. University of California at San Diego Bookstore, La Jolla, CA, public talk.
October 2. Google, Mountain View, CA, invited lecture.
October 6. Powell's Books, Portland, OR, public talk.
October 7. Town Hall Science Lecture Series, Seattle, WA, public lecture.
October 8. Microsoft Research, Redmond, WA, invited talk.
October 8. Village Books, Bellingham, WA, public talk.
October 10. Courses Without Quizzes lecture, Stanford University, Stanford, CA.
October 16. Davidson College, Davidson, N.C., The Annual Bernard Lecture.
October 17. Tattered Cover Bookstore, Denver, CO, public talk.
October 21. Kepler's Bookstore, Menlo Park, CA , public talk.
October 22. Stacey's Bookstore, San Francisco, CA, public talk.
October 23. Books Inc., Palo Alto, CA, public talk.
October 30. American River College, Sacramento, CA, invited lecture.
November 6-7. Louisiana Association of Teachers of Mathematics, annual conference, Baton Rouge, LA, two invited lectures.
November 11. Stanford Parents Club, Tresidder Union, Stanford, CA, invited address and discussion.
December 7. CMC-North Annual Conference, Asilomar Conference Center, Pacific Grove, CA. Live performance of Harmonious Equations, with Zambra choral group and dance by Karl Schaffer.

Talks in 2007:

January 26. Willow Glen Middle School, San Jose, CA, guest presentation.
February 21. Marin Academy, San Rafael, CA, guest presentation.
March 8. French American International School, San Francisco, CA, Science and Mathematics Day, guest lecture.
March 10. Science, Math and Technology Conference, Head-Royce School Oakland, CA, plenary address.
March 23-24. WNET/Channel 13 Celebration of Teaching and Learning professional development conference, New York City, plenary address.
March 25. Ask a Scientist, The Canvas Gallery, 1200 9th Ave (@ Lincoln) San Francisco, 7:00 PM, talk and discussion.
April 3. Truman State University, Kirksville, MO, Student Research Conference, plenary address.
April 30-May 3. Blekinge Institute of Technology, Ronneby, Sweden, guest lecture.
May 21-June 1. St. Peters College, Adelaide, Australia, Mathematician in Residence, including some public talks.
September 20. Mission College, Santa Clara, CA, guest lecture.
September 29. The Carmel Authors and Ideas Festival, Carmel, CA, speaker and guest author.
October 30, Santa Clara University, Santa Clara, CA, colloquium lecture.
November 2-3, Pi Mu Epsilon Undergraduate Mathematics Conference, Saint Norbert College, De Pere, WI, featured speaker.
November 8, CogLunch series, Cordura Hall, Stanford University, Stanford, CA, colloquium speaker.
December 1. CMC-North Annual Meeting, Asilomar, CA, joint presentation with the choral group Zambra.
December 1, CMC-North Annual Meeting, Asilomar, CA, invited address.

Talks in 2006:

January 13. Joint Mathematics Meetings, plenary speaker, San Antonio, TX.
January 27. McMaster University, Hamilton, Ontario, Canada. Mathematics Colloquium talk.
January 28. Fields Institute, Toronto, Ontario, Canada. Invited Address, Mathematics and the Media Conference.
February 18. AAAS Annual Conference, Presenter, panelist, and symposium chair. St Louis, MO.
April 26. Sonoma State University, Rohnert Park, CA, Mathematics Colloquium talk.
April 29. American Mathematical Society Regional Meeting, San Francisco State University, session speaker.
May 4, Unione Industriale, Turin, Italy. Invited talk.
May 17-18. Information Theory Workshop, Munchenwiler Castle, Nr. Fribourg, Switzerland, invited speaker.
May 31. De Anza College, Cupertino, CA, guest lecture.
June 4-7. Elementary Mathematics Education Meeting EME06, Viana do Castelo, Portugal, plenary speaker.
June 11-13. International Workshop on Human Centered Technology HCT06, Pori, Finland, plenary speaker.
July 25. Summer Science Program, Ojai, California, guest speaker.
September 14-15. Workshop on the Foundations and Applications of Mathematics, Berlin, Germany, plenary speaker.
September 28. Mission College, Santa Clara, CA, guest lecture.
October 5. Ebey Lectures, University of the South, Sewanee, Tennessee.
October 11. North Star Academy, Redwood City, guest presentation.
October 17. De Anza College, Cupertino, CA, guest lecture.
November 3. The Dalrymple Lecture, University of Mississippi.
November 8. The Commonwealth Club of California, San Francisco, luncheon speaker.
November 24. Canadian Mathematics and Education Workshop, Acadia University, Nova Scotia, plenary speaker.
November 30. CMC^3, Monterey, CA, plenary speaker.

Talks in 2005:

March 8 - 11. University of Amsterdam, Netherlands.
March 31 - April 2. University of Puget Sound, Washington state.
April 5. Cody's Bookstore, Telegraph Avenue, Berkeley, CA (7:30pm).
April 6. Stacey's Bookstore, Market Street, San Francisco, CA (12:30pm).
April 7. Barnes and Noble Bookstore, Walnut Creek, CA (7:30pm).
April 12. University of Washington, Seattle, WA.
April 22. Simon Fraser University, Vancouver, Canada.
April 25. Castilleja School, Palo Alto, CA.
April 28. Kepler's Bookstore, El Camino Real, Menlo Park, CA (7:30pm).
June 2. PARC Forum, Palo Alto, CA (4:00pm).
June 3. Canadian Mathematical Society, Plenary Address, Waterloo, Canada.
September 15. Utah Valley State College, Orem, Utah.
November 2. San Jose State University, Physics Colloquium talk. (4:00 pm)
November 7. Rotary Club of Palo Alto, Ming's Restaurant, Palo Alto, CA. (noon)
November 11. AMATYC Annual Conference, Plenary Address, San Diego, California.
November 17. Laney College, Oakland, California, Carnegie Foundation Teaching and Learning Series. (noon)
December 7. Ask a Scientist, dinner/drinks and talk/discussion, The Bazaar Cafe, 5927 California St. San Francisco. (7:00pm)
December 14. Blue Hills Elementary School, Cupertino, CA.

Talks in 2004:

January 15. Living Wisdom School, Palo Alto.
March 5. Cranbrook Kingswood School, Bloomfield Hills, Michigan.
March 10. YLEM Forum, McBean Theater at the Exploratorium, San Francisco, California.
March 12. Marschalk Colloquium Lecture, UCLA, Los Angeles, California.
March 24. City Businesswomen's Event, Iizuka City, Japan.
March 31. Spring Arbor University, Spring Arbor, Michigan.
April 7. San Jose State University, San Jose, California.
April 13. Santa Clara University, San Jose, California.
April 21. National Council of Teachers of Mathematics Annual General Meeting, Plenary Address, Philadelphia, Pennsylvania.
August 28. Annual Alumni Meeting, Duxx Graduate School of Business Leadership, Monterrey, Mexico.
September 7. British Association for the Advancement of Science, University of Exeter, UK.
September 10. International Conference on Advances in Modal Logic, Plenary Address, Manchester University, UK.
October 14. Annual Georgia Mathematics Conference, Plenary Address, Rock Eagle, Georgia.
November 4. Simon Fraser University, Invited Lecture, Vancouver, Canada.