This will be the twelfth Sonia Math Day for 8th-12th grade girls hosted by the University of Illinois Graduate Student Chapter of the Association for Women in Mathematics (AWM). Through a series of fun, hands-on activities, we will explore abstract algebra and group theory. What if we did arithmetical operations, but without numbers? What is an algebraic structure? The AWM will also provide pizza, t-shirts, and take-home prizes for participants!

**Registration is now closed.
Please notify us of cancellations by contacting Dana Neidinger at dn2@illinois.edu**

**Schedule **

Sonia Math Day will take place from 10 am - 3 pm (note change from previous years).

**10-11:** Sign-in, icebreakers, and introduction (245 Altgeld Hall)

**11-12: **Introductory activity (159 Altgeld)

**12-12:30: **Pizza lunch (173 Altgeld)

**12:30-1: **Talk by professor Bruce Reznick (245 Altgeld)

**1-2:** Braiding and infinite algebras (159 Altgeld)

**2-3:** Wallpaper and symmetry groups (173 Altgeld)

**Sponsors**

We would like to thank our sponsors:

- Office of Public Engagement, University of Illinois for a Public Engagement Grant
- Association for Women in Mathematics, University of Illinois
- Department of Mathematics, University of Illinois
- Illinois Geometry Lab
- National Science Foundation

It is impossible to be a mathematician without being a poet in soul.

*- Sonia Kovalevsky*

**Past Sonia Math Days**

- Fall 2018:
**Walks through Mathematics** - Spring 2018:
**Knot Theory** - Fall 2017:
**Math and Magic** - Spring 2017:
**Mathematical Paradoxes** - Fall 2016:
**Logic in Wonderland**(Logic) - Spring 2016:
**Games on Surfaces**(Topology) [Flier] - Fall 2015:
**Counting and Coloring**(Combinatorics and Graph Theory) [Flier] - Spring 2015:
**Knots and Braids**(Knot Theory) [Flier] - Fall 2014:
**Games of Chance**(Probability Theory) [Flier] - Fall 2013:
**Math and Magic**(Number Theory) [Flier] - Spring 2013:
**To Catch a Thief in Königsberg**(Combinatorics and Geometry) [Flier]