California Mathematics Council Community Colleges    
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CMC3 Recreational Math Conference
Lake Tahoe
April 26 and 27, 2019
At Lake Tahoe Community College

Friday Evening Keynote Speaker 7:00 PM:  Naoki Saito, UC Davis

Satuday Keynote Speaker:  Terry Krieger, Rochester Community and Technical College
    The Funny Thing about Math

Terri Kreiger

This entertaining presentation takes a look at mathematical oddities, curious results, and humorous anecdotes that have been collected from books, friends, students, and colleagues over the past 30 years. The topics come from courses taught at the university, community college, and high school levels. Several topics are unique to my teaching experience and will not be universally known. Old and new technology, including Python code with documentation, will be used to analyze and solve some curious problems. While the presentation is intended to be entertaining, there are plenty of useful mathematical ideas presented throughout. Math stories will be shared that are often amazing, sometimes confounding, and many times just plain ridiculous.

We are still working on the plans for the 2019 Tahoe Conference, but if you want to get an idea of what it will be like, see below for the information from the Tahoe 2018 conference.

Here are Some of the PowerPoints from the Conference Talks:

Carlo Sequin's Talk: 
The talk slides are posted on my "TALKS" page:

"The Magic Power of Geometry and Topology"
CMC3: Recreational Mathematics Conference, South Lake Tahoe, April 27, 2018.  PPT 

Christopher Yang's Presentation:
Click Here

Steven Davis' Presentation:
Click Here

Chuck Barnett's Presentation:
Click Here

Register for the Conference:

Early registration for the conference is now closed.  Early registration was $85 for general attendees, $75 for CMC3 members and $10 for full time students.  Now that it is after April 13, everyone is still welcome to register on site, but a $30 late fee will apply.

Book your Room  (Still in Progress, but we think the information will work)

To reserve a room at the Beach Retreat & Lodge you can either:

1. Call (800) 972-8558, select option 2 (Group Reservations) and make a reservation for the CMC3 Annual Math Conference, and the Group Code is GCMC3C.
2. Book on-line at:

Group rates:
$ 80.00 for Standard rooms
$100.00 for Partial Lake View rooms
$120.00 for Beachfront rooms
Rates are nightly and exclude a 12% occupancy tax, $3 local TID tax and a nightly $15 resort fee. Pet friendly rooms are an additional $40.00, plus taxes and fees per night.

Extra Events
Your conference registration includes a Foundation reception on Friday evening along with a continental breakfast and a lunch on Saturday.  There will also be a Geocaching event immediately after lunch.  Weather permitting, you will be given math problems whose solutions are the GPS coordinates of the hidden cache. 

View the Program
Click Here 

Saturday Keynote Speaker: 
Janko Gravner,  UC Davis  gravnerATucdavisDOTedu
Between Order and Disorder

Many interesting phenomena involve a mixture of randomness and order. On simple examples, we will present ideas such as self-organization and metastability. Rather than introducing formal statements, we will be looking for connections between mathematics, natural and social science and art.

Friday Evening Keynote Speaker, 7:00 PM:
Carlo Sèquin, UC Berkeley  sequinATberkeleyDOTedu
The Magic Power of Geometry and Topology

Carlo Sequin
The first part of the talk will introduce “Mathematical Seeing,” a way to perceive constructions that cannot exist in our 3-dimenional universe.   Examples are the “Platonic Solids” in four and higher dimensions and single-sided surfaces as they occur in Klein bottles.  The second half will show how several artists have captured such concepts in real, physical sculptures.  Some of these sculptures will then be analyzed for their underlying geometrical and topological ideas, and some of the more intriguing paradigms will be extended to new sculptural models of even higher complexity.

Saturday Student Speaker
We are happy to announce that Christopher Yang from Las Positas College will speak on Tidal Forces and the Expanding Lunar Orbit

Christopher will present a mathematical model for the expanding lunar orbit caused by tidal friction. The methods include using vector calculus to model gravitational forces, using gravitational level surfaces to model ocean tidal bulges, and using trigonometry to model the angle geometry of the Earth-Moon system.

Session Talks (Saturday April 28): 

   Session 1
9:00 - 10:00
Session 2
10:30 - 11:30
Session 3
2:30 - 3:30
Session 4
4:00 - 5:00
A 208
Deborah Frank
Poker Math for Live Players
T.J. Gaffney
Fun with Optimization
Leslie Banta
AB 705 discussion
Nick Shaposhnikov
A Natural Suit for Artificial Intelligence 
B 103
Hop David
Conics from Orbital Elevators
Chuck Barnett
Bad Penny Problem
Scott Annin and
Steven Davis
AIME Problems for College Kids
Steve Blasberg
Have I Got Problems
(and Solutions)!
E 106
Rick Luttmann
A Circus of Circles
Simon Rubinstein-Salzedo
Take-away Games
No Session  No Session

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