**Evan Levy ’14** — “Engaging Tasks Using Multiple Representations”

**Jackie Witt ’10** — “Tiered Lessons in the High School Math Classroom”

**Robert Cunningham** & **Farshid Safi** — ”Developing Rich Mathematical Tasks: Enhancing Relational Understanding”

**Kevin Dziuba ’02** & **Jennifer Gerry ’02** — ”Standards in the High School Math Classroom: Assessments and Grading”

**Erin Suozzo ’12** — ”Differentiated Activities for Middle School Math”

**Jameel Misbahuddin ’07** & **Stephanie Niemis ’07** — ”Effective Questioning in Math Classes”

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Dr. Hans U. Boden from McMaster University on Wednesday, April 29 at 11:00am in SCP 229.

**Title:** Virtual Knots and Knotted Surfaces

**Abstract: **This talk will be a gentle introduction to virtual knot theory, which was discovered by Louis Kauffman in 1999. We will define virtual knots and show how to view these as knots in thickened surfaces, and also how every virtual knot determines a knotted surface in 4-space via “balloon inflation.” We will also discuss how to define useful quantities to distinguish between virtual knots and present some recent results that grew out of undergraduate summer research projects conducted in 2013 and 2014.

Dr. Rachel Ward on Wednesday, April 22 at 11:00am in SCP 229.

**Title:** Geometric Clustering: Efficient Algorithm and Guaranteed Optimality

**Abstract:** k-means clustering aims to partition a set of n points into k clusters in such a way that each observation belongs to the cluster with the nearest mean, and such that the sum of squared distances from each point to its nearest mean is minimal. In general, this is a hard optimization problem, requiring an exhaustive search over all possible partitions of the data into k clusters in order to find the optimal clustering. At the same time, fast heuristic algorithms for the k-means optimization problem are often applied in many data processing applications, despite having few guarantees on the clusters they produce. In this talk, we will introduce an efficient algorithm for solving the k-means optimization problem, along with geometric conditions on a set of data such that the algorithm is guaranteed to find the optimal k-means clustering for the data. For points drawn from separated balls, the important quantities are the distances between the centers of the balls compa

red to the relative densities of points within them. We will also discuss connections to spectral clustering and the question of partitioning data arising from nonlinear shapes such as concentric circles. We will conclude by discussing several open questions related to this work. This is joint work with P. Awasthi, A. Bandeira, M. Charikar, R. Krishnaswamy, and S. Villar.

Dr. Rachel Ward received her PhD at Princeton University’s Program of Applied and Computational Mathematics. She is currently an assistant professor at The University of Texas at Austin. Before joining UT Austin, Dr. Ward was an NSF Postdoctoral Fellow at Courant Institute, New York University. Her research interests include mathematical signal processing, applied harmonic analysis, compressed sensing, theoretical computer science, and machine learning. Dr. Ward is the recipient of several prestigous awards including Barry M. Goldwater, NSF Graduate Fellowship, Alfred P. Sloan Fellowship, and an NSF Career Award to name a few.

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The 2014 top 5 teams, in rank order were MIT, Harvard, Rensselaer Polytechnic Institute, University of Waterloo, Carnegie-Mellon.

Congratulations to all of our students!

]]>Committee: Cliifford, Reimer, Hingston (Dept meeting at 12:00)

Wed April 15, 11:00 Conor Kelton. “Nonnegative Matrix Factorization and the Estimation of Dimensionality in Gene Expression”

Committee: Ochs, Holmes, Hingston

Wed April 15, 12:00 Vince Longo. “Knot invariants from spanning surfaces”

Committee: Curtis, Papantonopoulou, Hingston

All talks in Room 229. Talks should last 35-40 minutes. Followed by questions.

]]>The Mathematics and Statistics Department is pleased to announce that Junior Alana Huszar, a Junior Mathematics major, has been named a 2015 Goldwater Scholar. Alana is a very familiar face to anyone in the Mathematics and Statistics Department. She’s one of our student tutors and, if you’ve ever stopped by the office, it’s likely you’ve gotten a cheerful greeting or an upbeat comment from her, since she’s usually here even when she isn’t working. She has a long list of scholastic accomplishments, and we are very proud that she has now added Goldwater Scholar to that list.

Alana the fourth department major to have received this accolade. Our previous winners were Syndi Barish ’15 (double major with Biology) who won last year, Glen Wilson ’10, and Nick Locantore ’94. Goldwater Scholars are chosen as a result of a highly selective national competition which honors exceptional undergraduate students who plan to pursue graduate degrees in the STEM fields and careers in research.

Congratulations Alana!

]]>Registration is right around the corner! Before or after heading to see your advisor, join us on April 1st at 12:00pm in SCP229 and get advice from those have been there before. We have the inside scoop on classes and professors, so don’t miss out on the chance to ask any questions you want!

All upperclassmen are invited as well to share your wealth of knowledge with those looking for guidance.

See you Wednesday,

The Math & Stat Club

]]>Dr. Matthew Malej on Wednesday, March 25 at 11:00am in SCP 117.

**Title:** Internships and Careers with the Department of Defense

**Abstract: **Interested in an internship or career with the Department of Defense? Dr. Matthew Malej from the Coastal & Hydraulics Laboratory will be discussing projects with the DoD as well as internship and job application procedures. Students in engineering and sciences who are US citizens are strongly encouraged to attend.

Dr. Matthew Malej received his Ph.D in Mathematics from The New Jersey Institute of Technology. He is currently a research mathematician at the Coastal & Hydraulics Laboratory with the US Army Engineer Research and Development Center and has worked at the Naval Resesarch Laboratory and Stennis Space Center.

]]>**Administrative Panel**

The three panelist will discuss their experiences as teachers/ administrators/ supervisors and provide pre-service teachers tips and suggestions on how to start preparing for the interview and first year of teaching.

**Panelists:**

1. *Mr. Brian Harris* (Principal- Grover Middle School, West Windsor)

Mr. Harris earned his Master’s degree from TCNJ in 2000 and became a high school math teacher in Edison for 8 years. Later he became the Assistant Principal at J.P. Stevens High School, and in 2013 he became the Principal at Grover Middle School in West Windsor.

2. *Mrs. Andrea Bean* (6-12 Math Supervisor, West Windsor- Plainsboro School District)

After graduating from Temple University, Mrs. Bean taught all levels of mathematics at West Windsor- Plainsboro High School South for 20 years. Following high school, she taught 3 years at Thomas Grover Middle School and earned my Master’s Degree at TCNJ. She is currently the District Supervisor of Mathematics for grades 6-12. She also serves as a member at large for the Association of Mathematics Teachers of New Jersey.

3. *Mr. Don Wahlers* (K-6 District Math Supervisor of Curriculum & Instruction, Ewing Public Schools)

Donald Wahlers earned a B.S. and B.A. from Pennsylvania State University and a M.A. from Rider University. He spent ten years as a high school science teacher followed by ten years as K-12 Supervisor of Curriculum and Instruction in Mathematics and Science. He is currently starting his focus on Curriculum and Instruction for STEM in grades K-6, where he looks forward to developing an integrated instructional experience to foster a strong foundation to support students in further studies in mathematics, science, technology, and engineering.

**Date: **Wednesday, March 11th

**Time: **5:00-6:00 pm

**Location: **SSB 227

****This talk will count towards the department colloquium requirement for all math education majors****

Senior Mathematics majors Vincent Long and Jessica Perez presented posters at the

2015 Joint Mathematics Meetings (JMM). The annual event, which is the largest mathematics meeting in the world, was jointly sponsored by the Mathematical Association

of America (MAA) and the American Mathematical Society (AMS), and took place January 10-13, 2015, in San Antonio Texas.

Vince’s poster, “Knot Invariants From Spanning Surfaces,” came from research he did with TCNJ’s Dr. Cindy Curtis.

Jessica’s poster, “Modeling the Interaction Between Inflammatory and Cardiovascular Dynamics,” comes from work she did during an REU at NC State University.

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