Welcome to the Mathematics Teachers' Circle of Austin!

This is the official site for the Mathematics Teachers' Circle of Austin, a professional learning community that brings together middle and high school math teachers and professional mathematicians so that they may work together and learn from each other.

Fall dates announced!
October 5 
October 26
November 30

Our first fall meeting will be:
Paul Fili
Oklahoma State University
October 5
6:00PM  - 8:00PM
NOA 1.124

Techniques and ideas for teaching number theory and cryptography at the secondary level

Abstract: In a 1915 lecture on the theory of prime numbers, mathematician G.H. Hardy was quoted as saying, "The theory of Numbers has always been regarded as one of the most obviously useless branches of Pure Mathematics" -- but in today's world, few statements could be more wrong. In an increasingly digital age, where the ability to send a credit card number securely on a website is the sine qua non of the new economy, and governments and corporations all over the world vie with each other to secure their communications and information against hackers and cyberterrorists, it's almost easy to forget just how important a role number theory plays in our lives. To better prepare our students for life in this new age, it behooves us to find ways to make the key concepts and ideas of number theory and cryptography accessible to students even at the secondary level.
In this talk, I will discuss what concepts and examples I have used to make the ideas of modern public key cryptography accessible to audiences of secondary students, starting with nothing more than the idea of "clock arithmetic" and elementary algebra.

Those of you who enjoy reading about math and the history of math should check out Eric Mann's math blog Footpath Math.  It is a nice collection of posts on a variety of mathematical topics, all illustrated with chalk on sidewalks all over Austin, and in cities beyond.

Please visit our Previous Workshops page for information and handouts from previous sessions.  
Information and handouts from previous workshops can be found by clicking on the Previous Workshops tab in the sidebar.  There you will find links to all previous MTCA workshops.  When handouts are available, they will be found as links at the bottom of each post.  You can also find links to handouts from our summer workshops by clicking on Workshops, then following the links to the summer workshops in 2010, 2011, and 2012.

Check out Jason's collection of Collaborative Mathematics problems by clicking on http://www.collaborativemathematics.org/

Hanna Bennett has written up a very nice solution to the Fall 2013 Challenge Problem, asking for all the semiregular tilings.  Please see Hanna Bennett's Solution to the Semi-regular tiling problem.

Laura Battle's 5th Grade Class solves the locker problem.

Registration is free and open to all math teachers/instructional specialists/coordinators in the Austin area.  Join us for dinner and problem-solving fun!  See calendar below for more details.

MTC Austin