Home > NACLO at UMD



What is NACLO?
How do I register?
Important Dates


We are pleased to be a host site again for the 2020 North American Computational Linguistics Open competition (NACLO). 

What is NACLO?
NACLO is a contest for students in grades 6-12 (although primarily targeted at grades 9-12) in which contestants solve interesting and challenging puzzles in linguistics and computational linguistics. These puzzles require no previous knowledge of linguistics or computing and can be solved by analytic reasoning alone. In solving the problems, students learn about the diversity and consistency of language, while exercising logic skills.

NACLO consists of two rounds: the Open Round (January 28, 2021), open to all interested high school and middle school students, and the Invitational Round (March 11, 2021), for students who have advanced from the first round. The top students in the Invitational Round are eligible to represent the US in the International Linguistics Olympiad (in Ventspils, Latvia on July 19 - 23, 2021), one of thirteen international high school science Olympiads.

The NACLO website has comprehensive information on the competition, including sample problems from past Olympiads. We strongly encourage all participants to complete several sample problems and/or attend information sessions listed below.

How do I register? 
Thanks to the generous support of the sponsors, participation in NACLO is free. NACLO registration for 2021 is now open on the NACLO website. When completing the registration form, select University of Maryland as the site. Make sure to remember your ID. Due to COVID-19, this year we will be able to accomodate only up to 12 students. After reaching this number, the registration for our site will be closed. If the situation changes, and we will not be able to host, the registered students will be reassigned to the At-Home participation and contacted by NACLO with further instructions.

Important Dates:

NACLO Open Round: January 28, 2020

  • Location : 2123, H. J. Patterson Hall, University of Maryland, College Park, MD 20742
  • Schedule:
    • 09:15 AM - 9:55 AM - Report for the contest
    • 10:00 AM : Contest begins
    • 01:00 PM : Contest ends

NACLO Invitational Round: March 11, 2020

  • Location: 2123, H. J. Patterson Hall, University of Maryland, College Park, MD 20742
  • Schedule:
    • 08:30 AM - 8:55 AM - Report for the contest
    • 09:00 AM : Contest begins
    • 01:00 PM : Contest ends

For questions about NACLO at the University of Maryland, contact Polina Pleshak (ppleshak@umd.edu).

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