Registration Deadline: Friday, November 7, 2025

Teachers will use the online registration system to:

• Register their school for Math Day
• Enter the names of all students who will be participating.
• Enter the number of posters you will bring to the Mathematics Fair.
• Indicate how many three-person teams are desired.

Registration is open now until November 7, 2025.

Registration is per school and tied to only one email address. Please have the primary sponsor who will be attending Math Day with their students create an account. Once you create an account, you will be able to save information and add updates in the portal until you confirm registration.

Math Day Check-in:  Registration check-in is 7:30 a.m. – 9:00 a.m. on the third floor of Lory Student Center outside the Grand Ballroom. Even though your school has pre-registered, you must check in at our registration desk. At the desk, we will verify the names of all students and collect any registration fees due.

If you have student posters or are participating in the Quiz-Bowl Team Tournament, please come during the earliest part of registration so we can set up your students’ work and teams. Check-in after 9 a.m. may not be able to participate in the tournament or the Student Project Math Fair. Students can enjoy math-themed activities at the Math Fair after their school check-in.

All student participants will receive an ID name tag at the registration desk that must be worn throughout the day so that students participating in the team competition can be identified.

We have two options for paying your registration fee of $25 per student. 

At Math Day check-in:

You may pay your full registration fee at the check-in table the day of the event with a check made out to Colorado State University, or by credit card.

Pay Before Math Day:

After confirming registration, we will send the primary sponsor payment options. Please note we are not able to provide refunds for overpayment of registration fees, so you should only pay before Math Day if you know your registration numbers will not change.

Pay your registration fee by check:

Send a check made out to Colorado State University to the following address:

Department of Mathematics
Math Day Registration
1874 Campus Delivery
Fort Collins, CO  80523-1874

Please mail your check so that it will arrive before Math Day!

Pay your registration fee by credit card:

After you confirm your registration, an email will be sent to the contact person designated in the registration system with a link to pay the registration fee of $25 per student by credit card.

The guest lecturer for Math Day 2025 is Michael DiPasquale, assistant professor at New Mexico State University, whose research is in computational commutative algebra and algebraic geometry.

List of previous Key-Note speakers

A highlight of the day is a college bowl-style competition, which features a full, double-elimination tournament with three-member teams from 64 schools competing in separate tournaments representing large and small schools.

Every school is allowed one 3-person team; however, you may request additional teams and every effort will be made to accommodate multiple teams for each school.  This is determined on a first-come, first-served basis and will be decided after all schools have checked in at the registration table.

Information about the number of teams each school has been allowed, the name assigned to each team, along with the time and place of their first competition, will be posted on the two large monitors located outside the Grand Ballroom beginning at 10:30 a.m.  The typical nomenclature for naming is as follows

High School Name A, High School Name B, High School Name C

Important:  Once you know how many teams you have and before Math Day, decide the roster for each 3-person team. At the registration desk, you will complete team roster cards listing the name of the team and all team members. You may list more than 3 members on each team, but only 3 members can compete at a time, and substitutions are only allowed between rounds. This card must accompany the team to all competitions.  Schools that make it to the finals must present this card so that team membership can be verified.

Once the competition begins, the teams listed on your roster cards are set, and you cannot switch students between your A-C teams. If a team is eliminated, ALL members of that team are out of the competition and cannot move to a different team still competing.

At 11:00 a.m. the large school competitions begin.

At 11:20 a.m. the small school competitions begin.

Real-time updates on the team competition brackets will be displayed on the monitors outside the Grand Ballroom.  This allows both teachers and students to keep track of their school’s progress in the TEAM competitions.

Sample questions for the Team Competition can be found here.

Math Bowl Team Competition rules can be found here. Please note an update this year regarding scratch paper.

The Mathematics Fair is one of our favorite parts of Math Day! We love to see students interact with mathematics in creative and engaging ways.

The Math Fair has two components. The Math Fair Ballroom holds both student poster displays and has tables spread with math-themed games and activities.

Students and educators can stop in at free moments throughout Math Day and interact with math-themed activities, puzzles, and games, and view student-created projects.

Components of the fair include:

• Mathematical-themed activities, puzzles and games
• Student mathematical poster contest

We encourage your school to participate in any and all of these components. In particular, please encourage your students to design a poster (individually or in groups) to be displayed. For planning purposes, please let us know how many posters you plan to bring. Poster display boards will be provided.

Within the poster session, there will be three broad categories for which students can win 1st-3rd place awards:

• Mathematical Models and Art – Including multi-media, 3D printing, mechanisms, etc.
• Original Mathematics Research
• Mathematical Ideas, History, and Educational Innovations

Lunch arrangements are to be made individually by each school and within your schedule. For students participating in the TEAM competition, we recommend lunch during one of the 20-minute off-periods during the early rounds of competition, as there are no off-periods for winners in the rounds after 1:00 pm.

Lory Student Center offers a number of dining choices on the second floor, as well as dining tables if students would like to bring in sack lunches. Please be aware that some of these restaurants don’t accept cash, just credit/debit card and Apple Pay.

In addition to the restaurants on the second floor of Lory Student Center, there are a wide variety of choices adjacent to campus, including Fuzzy Tacos, Wendy’s, Jim’s Wings, McDonald’s, Five Guys Burgers and Fries, Pita Pit, Sonic, Bluebird Cafe, Rainbow Cafe, Pickle Barrel, Chipotle, and Noodles.

Math Day Location: Colorado State University, Lory Student Center, 1101 Center Ave Mall, Fort Collins, CO 80521

Check-in: All schools must check in between 7:30 a.m. – 9:00 a.m. Please arrive as early as possible for registration if you have a Quiz Bowl team or student projects for the Math Fair. Your students can enjoy the Math Fair activities after registration. Check-in will end promptly at 9 to organize teams.

Student Drop-Off/Pick-Up: All buses should drop off and pick up their students on Meridian Ave (Lime Green section on the map below).

Buses: Buses are encouraged to arrange off-campus parking, as space on campus is very limited. Buses that park on campus will need to purchase an Event Parking Pass and park in designated Lot 195 (by Moby Arena), on the west side.