Cell Phone: 707-832-9973
At Forty-Second Annual State
of Jefferson Mathematics Congress October 5, 2013
Professor Emeritus of Mathematics
Fall, 2017 - Spring, 2020: Visitor to University of Arizona Mathematics Department, Tucson, AZ.
out about the Sensible Calculus Program
Mapping Diagrams from A(lgebra)
B(asics) to C(alculus) and D(ifferential) E(quation)s. A Reference and Resource Book on Function Visualizations
Using Mapping Diagrams (In Development-Draft Version 8-2017)
Webinar, "Visualizing Solving Equations with Function Mapping Diagrams" September 22, 2020. (On YouTube.)
Joint Mathematics Meetings Denver, CO Jan. 15&17, 2020: MAA Minicourse 2020: Visual Complex Analysis- GeoGebra Tools and Mapping Diagrams GeoGebra Book.
HSU Math Department Colloquium,"Linear Algebra & Mapping Diagrams: Old & New Visualizations" (GeoGebra Book) Sept. 5, 2019.
of Bridges 2019: Mathematics, Art, Music, Architecture, Education,
Culture, Edited by Goldstine, McKenna, and Fenyvesi, July, 2019, pp
"Mapping Diagrams and a New Visualization of Complex Functions with GeoGebra"
Mapping Diagrams and Visualization of Complex Function. GeoGebra book, https://ggbm.at/gutmhcp8, July, 2019.
MEI Conference 2019 (Bath, UK), Saturday, June 29, 2019.[Links]
"Visualizing Functions with Mapping Diagrams"
"Visualizing Calculus with Mapping Diagrams"
ICTCM 2019 (Scottsdale, AZ). Saturday, March 16, 2019. [Links]
"GeoGebra Tools for Visualizing Integration with Mapping Diagrams"
"GeoGebra Tools for Creating Mapping Diagrams: From Worksheets to Books"
ArizMATYC Conference (Phoenix, AZ), Friday October 5, 2018. [Links]
"Making Sense of Integration Visually:
Mapping Diagrams for Calculus"
"Solving Polynomial Equations: Visualization from Linear to Cubic, from Rational to Complex Numbers".
HSU Math Department Colloquium,
Many Ways Can You Solve a Quadratic Equation Visually? From the
Greeks to 21st Century Technology." Sept. 13, 2018.[Links]
British Congress of Mathematics
Education 9, [Sessions A20, D20, E20, H20] April 3-6, 2018, University of
Informal Proceedings 13- Mapping Diagrams: Four Sessions, One Theme. Using Mapping Diagrams in Algebra, Calculus, and Complex Analysis
Sacramento Valley Community College Mathematics (SVCCM) Conference, American River College (Sacramento), "Solving Polynomials: Mapping Diagram Visualization", Saturday, March 3, 2018.[Links]
Joint Mathematics Meetings San Diego, CA, Jan. 13, 2018:
"Mapping Diagrams Visualizing Functions and Equation
Solutions: From Algebra Basics to Real and Complex
Special Session on Visualization in Mathematics: Perspectives of
Mathematicians and Mathematics Educators. [Links]
"Making Sense of Complex Integration: Mapping
Diagrams Created with GeoGebra to Visualize Definitions, Theory and
Applications." MAA Session on Revitalizing Complex Analysis [Links]
Recent (back to 2011) Stuff.
Not So Recent (before 2011) Stuff.
My Bookmarks (old)
A resume.(pdf) ;
A biographical sketch.
POM SIGMAA (Philosophy of
Find out more about this Special
Interest Group of the MAA.
(History of Mathematics)
Find out more about
this Special Interest Group of the MAA.
WORK IN PROGRESS (7-13-2019)
This site is still under
reorganization. It is now moved from a server at Humboldt State University to one at neocities.org.
Links are being reconfigured and some are inactive or
Older pages need reworking to be made handicapped
Links starting with "users,humboldt.edu/flashman" are being
readdressed as needed with "flashman.neocities.org"
I continue to work on this.