NACLO @ LASA
North American Computational Linguistics Open
2025 NACLO Open Round
Date (open round): Thursday January 23, 2025
Register: NACLO website (select LASA High School – listed under High School Sites – as your testing location). You can register on the website until Monday January 20th. After that you can can show up on Thursday and register as a walk up (if you plan to do walk-up registration, please send me an email by Wednesday lunch time at [email protected] so I can make extra copies of the test).
Time: Arrive by 8:45 a.m. for registration and seating. The test runs from 9 a.m. to 12 noon. For LASA students this is an excused absence.
Place: LASA High School LIBRARY, 1012 Arthur Stiles Rd, Austin, Texas 78721, entrance of school
LASA Students: make sure your teachers are OK with you missing class that day.
Not a LASA student: park on the street & enter the school & sign in at the office (be sure to bring an ID).
Site coordinator: Rainer Mueller, LASA Computer Science Teacher ([email protected])
Site id: 402
What to bring: a couple of black pens (contest is free)
Look at: student handbook
The North American Computational Linguistics Open (NACLO) competition is a contest for U.S./Canadian high school and middle school students in which contestants compete by solving compelling and creative puzzles in linguistics and computational linguistics. Winners of NACLO are eligible to compete in the International Linguistics Olympiad (IOL), one of twelve international high school science Olympiads. No prior knowledge of linguistics or second languages is necessary.
Practice Problems (with Solutions) scroll down to NACLO 2023 problems
In the Open Round of the competition on January 26, 2017, 1509 students from across the U.S. and Canada competed at more than 200 sites. The top 10% go on to compete in the Invitational Round. Finally the top finishers in the Invitational Round compete in the International Linguistic Olympiad. LASA student Evan Hochstein was selected as an alternate for the US team in 2017 – press release.