Math Day at the University of Nebraska-Lincoln

Join us on Feb. 20, 2024

The 34th Nebraska Math Day will be held on Tuesday, Feb. 20, 2024, hosted by the Department of Mathematics. Math Day is now held on the third Tuesday of the month beginning in 2024. There will not be any Math Day events in calendar year 2023.

Nebraska high schools are invited to join us for a day of engaging mathematics. Math Day is designed for students in grades 9, 10, 11 and 12 and for exceptional students in lower grades. Teachers who would like to invite students from lower grades to participate must request and receive written permission from Nebraska Math Day. Homeschooled students are also welcome to attend but will need to contact us for a registration code. Contact us at mathday@unl.edu.

In 2014, the event celebrated its 25th anniversary and 1,506 students from 105 schools came to take the PROBE I exam. In 2013, we hosted 1,549 students from 109 Nebraska high schools, our highest record of students.

Math Day consists of one individual and two team mathematics competitions. All students participate in a multiple-choice, preliminary exam called PROBE I (Problems Requiring Original and Brilliant Effort). The top 50 students then move on to take the now famous essay exam called PROBE II. The PROBE top 25 Nebraska high school students (sum of PROBE I and II) are awarded a total of $41,500 in one- or four-year scholarships to UNL. First place is $8,000 over four years, second to fifth place is $4,000 over four years, and sixth to 10th place is $2000 over four years. Starting in fall 2022, students who place from 11th to 25th in the PROBE competition (sum of PROBE I and II) will each earn a $500 scholarship to UNL. This $500 award is a one-year scholarship, with $250 given each semester of their first year at UNL.

Schedule: In 2024, PROBE I will be taken at individual schools in January, in advance of the in-person event on campus on Feb. 20. Students will compete in the bowl team competition on Feb. 20 and any additional students who would like to attend hands-on activities can be registered by their teacher. PROBE II also is planned to occur on Feb. 20.

Math Day 2022 Poster

Math Day's Purpose

stimulate interest in mathematics among Nebraska high school students,
encourage them to pursue mathematics or mathematics-based science as a career, and
recognize mathematical ability by awarding scholarships, certificates and trophies.

Competitions

PROBE I and II: PROBE is the name of the individual competition. It is in two parts. The first part, PROBE I, is a one-hour, multiple-choice exam that is machine-graded. All participants are asked to enter this event. Plaques are awarded to the top five individuals on the PROBE I exam. The top 40 to 50 students are invited to enter the second part, PROBE II. PROBE II is a one-hour essay exam that emphasizes knowledge, depth of understanding and written expression. It is graded by faculty in the UNL Department of Mathematics. The PROBE top 25 high school students (sum of I and II) are awarded scholarships to UNL totaling $41,500 (scholarships are contingent upon students enrolling full time at Nebraska and declaring mathematics as one of their majors). All the questions assume only two years high school algebra and one year geometry. However, the answers to PROBE II questions require the creativity and originality that we expect from only the very best students.

Math Bowl Team Competition: The Math Bowl is a Swiss-system tournament similar to bridge and chess. Each team is guaranteed to play five rounds. There have been two classes in recent events (since 2020) Competitive and Recreational, but at least one additional class will be added in 2024. Trophies are given to the top 4 teams in each class.

See Results of Previous Math Days

See Previous Probe I Solutions

Rules for Students

No calculators allowed.
Agreement of Expectations for students: The focus of this competition is exploring mathematics, and I will give my best effort to interact with the faculty and students who are volunteering their time to speak with me and to participate in the activities provided by UNL. For my safety, I will always be with at least one other member of the group and at least one teacher. I will treat my surroundings with the appropriate respect. I agree to follow the instructions and schedule established by Math Day. If at any time the UNL staff deems my behavior unacceptable, my teacher may be notified, and I may be asked to leave the event.