Registration for the 20th OBMEP 2025 ends on March 17th.

Registration for the 20th Brazilian Mathematics Olympiad for Public Schools (OBMEP) is entering its final stretch. Public and private schools have until March 17th to guarantee their participation in the largest knowledge Olympiad in the country. Promoted by IMPA, OBMEP brings together more than 18 million students every year, from the 6th grade of elementary school to the 3rd year of high school. This year, the scientific competition celebrates two decades of encouraging education and discovering mathematical talents throughout Brazil.
Schools interested in participating in the Olympiad should visit the website www.obmep.org.br , fill out the registration form available, provide the MEC/INEP code, and create an access password. The regulations contain information about the conditions, deadlines, dates, and rules for participation in the scientific competition.
Taking the tests
The OBMEP takes place in two phases. The first consists of a multiple-choice test with 20 questions, which will be held on June 3rd. Those who qualify for the next stage will take a written exam with six questions on October 25th.
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The questions are prepared according to the student's grade level: Level 1 (6th and 7th grades), Level 2 (8th and 9th grades), and Level 3 (High School). The list of those who have passed to the second stage will be released on August 1st, and the winners will be announced on December 22nd.
Awards
OBMEP will distribute 8,450 national medals, including 650 gold, 1,950 silver, and 5,850 bronze, in addition to 51,000 certificates of honorable mention . Students who win national awards are invited to participate in the Junior Scientific Initiation Program (PIC) as an incentive and to promote academic development. The initiative offers a scholarship of R$ 300 to participants from public schools that are part of the program.
To further encourage student participation, OBMEP will also award prizes to students with the best state-level performance. At least 20,500 state medals will be distributed. It is important to note that the state-level award does not grant access to the PIC (Scientific Initiation Program).
Gold medal for the teachers
To honor the teachers, who are fundamental to the students' education, the 969 award-winning teachers will receive, in addition to the diploma and support book, a special gold medal. The award-winning teachers will also be entered into a draw for eight trips: six to the OBMEP 2026 National Award Ceremony and two to the Hilbert Hotel Meeting.
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