PSCTM LogoPuget Sound Council of Teachers of Mathematics

About UsJoining PSCTM Calendar Contacts Newsletters LinksNW Math Conference 
Puget Sound Council of Teachers of Mathematics is a professional organization dedicated to improving Math Teaching in the Puget Sound Region. PSCTM is an affiliate of the National Council of Teachers of Mathematics and one of the organizations that rotates in hosting the Northwest Math Conferences in October.  We offer an annual scholarship to PSCTM members for the conference to honor Elden Egbers, who was a big supporter of attendance at the conferences.  You can download more information and the application instructions are contained in this Word document.

If you teach Mathematics in the Puget Sound region, consider joining PSCTM, Washington State Mathematics Council, or both.
PSCTM was founded to encourage continual professional growth among local mathematics teachers. The organization sponsors three major activities during the year: a fall, a winter, and a spring dinner. A variety of programs are presented at these events, ranging from using a given manipulative in grades K-12 to the role teachers are playing in the new assessments.  

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Directions to Bishop Blanchet High School:
From the North: Take the 85th Street exit from I5 (just after Northgate) and turn left on Wallingford. 
From the South: Take the 85th Street exit from I5 (just after Lake City Way) and turn left on Wallingford.
The dinner is in Hagerty Hall, on the corner of 85th and Wallingford.

Spring Dinner - May 9, 2016

The social hour, dinner, and presentation are open to all, but we need to have you pre-register so that we can order the right number of meals.  The cost for dinner is $15 for members or $20 for non-members, payable at the door or by mail.  If you prefer to send in your payment in advance, the Dinner Registration and Membership Form is contained in this linked Word Document or this linked pdf.

Historic ‘Tile’ Discovery Gives Math World a Big Jolt
Casey Mann, Jennifer McLoud-Mann, Mathematics Dept., UW Bothell

The problem of classifying all convex pentagons that admit tilings of the plane has a rich history, and because the problem is still unsolved, it continues to generate interest in mathematics by budding mathematicians. The history of this problem starts way back in 1900 with #18 of Hilbert’s famous 23 problems (and even further). Many mathematicians have made contributions toward a classification, including amateur mathematician Marjorie Rice, who single-handedly discovered 4 new types in the 1970s. After describing the history and a few key mathematical concepts, Casey and Jennifer will describe the method by which their team discovered the 15th type of convex pentagon that tiles the plane. The mathematics involved is pretty accessible. Come and find out how history was made right here at UW Bothell!
See the article about this discovery at:

    5:00 Social Hour
    6:00 Buffet Dinner and Drawing for Pennewell Prize
    7:00 Historic Tile Discovery, Casey Mann and Jennifer McLoud-Mann

Eventbrite - PSCTM Spring Dinner 2016