| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $7,401; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): $1,000; 2027: Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Full and partial need-based scholarships: Amount: Unconfirmed — check official site. Availability and award amounts depend on program eligibility, academic merit, demonstrated need, institutional membership funds, and donations.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): 2026 application fee: $85. Nonrefundable.; Enrollment deposit: $1,000. Nonrefundable and applied to the total.; Course materials and academic field trips: $300. Required 2026 fee.; Program and health-center fees: $429. $325 program fee plus $104 health-center fee.; Residential room and board: $3,440. Shared room and specified meals; not available as an option to international students because they must reside.; 2027: Unconfirmed — check official site | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Full and partial need-based scholarships: Amount: Unconfirmed — check official site. Availability and award amounts depend on program eligibility, academic merit, demonstrated need, institutional membership funds, and donations.; 2027: Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 9–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Residency: Domestic and international high-school students; Requirement: Complete at least grade 9 before the program; Requirement: Pursue a rigorous high-school curriculum; Requirement: Attend every class from the first day with no late arrival; Requirement: International participants must obtain required immigration documents and meet health-insurance requirements; Exclusion: Late arrival or partial attendance was not allowed; Exclusion: International applicants could not choose commuter status; Exclusion: Admission to the summer program does not constitute or guarantee USC undergraduate admission | Ages 14–18; Residency: Students from the United States and abroad are eligible; international financial aid is case by case; Requirement: Be age 14-18 by the applicable program cutoff; Requirement: Have completed grade 9 or equivalent before the session; Requirement: Not be enrolled full time in a college or university by the program's first day; Requirement: Be available for the entire six-week residential session and comply with dormitory, curfew, visiting, safeguarding, and conduct rules; Requirement: Independently attempt the official application problem set and explain experiments, conjectures, proofs, and partial progress; Requirement: Submit the required recommendation, transcript, form, short answers, and any financial-aid documents; Requirement: Retain scratch work and be prepared to explain reasoning if originality is verified; Exclusion: Applicants outside the age/education window or already full-time college students at program start; Exclusion: Collaborative, copied, AI-assisted, internet-generated, uncited, or inadequately explained problem-set work; Exclusion: Applicants unable to reside for the full six weeks or follow residential/safety expectations; Exclusion: Assuming all eight problems must be solved or that prior advanced courses/research are required; Exclusion: Assuming selection guarantees aid, publication, conference presentation, college credit, recommendation, admission advantage, internship, or job | Requirement: Be a high-school student in the applicable cycle; Requirement: Have completed at least one year of Latin; Requirement: Know enough English for grammar explanation and discussion; Requirement: Provide availability that can be matched to a live section; Requirement: Have the required computer, internet, headset, webcam, and Zoom access; Exclusion: Complete beginners are directed to a separate ten-week Telepaideia beginner course; Exclusion: Enrollment does not guarantee a particular section time; if Paideia cannot match availability, it promises a refund; Exclusion: Exact 2027 grade, age, prerequisite, and availability rules are not posted |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts July 6, 2026; Ends July 18, 2026; 1.7 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | Online |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Los Angeles, California | Boston, Boston University campus, Massachusetts | Live Zoom sections scheduled around participant time zones |
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| Selection and application | Selection: Rolling admission based on academic preparation, essay, recommendation, transcript, and course capacity; popular classes can fill early. Application materials: Applicant-written 300-500 word essay; One online recommendation from a teacher, counselor, or mentor | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One recommendation | Selection: Open to high-school Latin students meeting the prerequisite, subject to section capacity and schedule matching; no applicant count or acceptance rate is published. |
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| Official sources | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20 | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22 |
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