| Application deadline | February 12, 2027 (2027 cycle) | Unconfirmed — check official site | February 12, 2027 (2027 cycle) |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | $600 (2027 cycle) |
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| Financial aid | Unconfirmed — check official site | Last year's cycle (2026): Need-based financial aid: Amount: Unconfirmed — check official site. Historical 2026 terms included free attendance for domestic households below $85,000, case-by-case aid above that threshold and for international students, and possible travel grants. Confirm 2027 terms.; 2027: Unconfirmed — check official site | 2027 need-based scholar-fee waiver: $0–$600. Limited waivers may be requested by students eligible for free or reduced-price lunch who do not have a sponsor. (2027 cycle) |
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| Expenses and aid conditions | Unconfirmed — check official site | Last year's cycle (2026): HCSSiM application: $0. The official finance page says applying is and will remain free.; Need-based financial aid: Amount: Unconfirmed — check official site. Historical 2026 terms included free attendance for domestic households below $85,000, case-by-case aid above that threshold and for international students, and possible travel grants. Confirm 2027 terms.; 2027: Unconfirmed — check official site | 2027 need-based scholar-fee waiver: $0–$600. Limited waivers may be requested by students eligible for free or reduced-price lunch who do not have a sponsor. (2027 cycle) |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Unconfirmed — check official site | Unconfirmed — check official site | Grade 10; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Minimum age 15; Requirement: Rising juniors/seniors and at least 15 at start, without exceptions.; Requirement: English proficiency, TOEFL 90/equivalent or published waiver. | Requirement: Be a high-school student who has not already graduated; Requirement: Show strong motivation for sustained, proof-oriented college-level mathematics; Requirement: Complete the applicant form, motivation letter, Interesting Test, and mathematical sponsor process when the next cycle opens; Requirement: Commit to the full six-week residential session under the published program model; Exclusion: Students who have already graduated from high school under the published FAQ; Exclusion: Assuming the historical Hampshire College campus, 2026 dates, or 2026 price applies in 2027; Exclusion: Assuming grades, college credit, admission to Hampshire College, or another college outcome | Residency: Missouri resident attending high school in Missouri or homeschooled in Missouri; Requirement: Be a current tenth grader during nomination for summer participation as a rising junior; Requirement: Receive a nomination from a counselor, teacher, principal, or other school official, except eligible homeschool self/family nomination; Requirement: Fit within the school's MSA nomination allotment; Requirement: Provide three-semester unweighted GPA and an accepted standardized aptitude or IQ score; Requirement: Demonstrate leadership, creativity, intellectual curiosity, problem solving, initiative, and likely benefit; Requirement: Commit to the full three-week residential Academy without planned absence; Exclusion: Students and families may not self-nominate outside homeschool settings; Exclusion: Incomplete nominations are not considered; Exclusion: Parents and guardians cannot write recommendation letters; Exclusion: MSA provides neither grades nor academic credit; Exclusion: Nomination does not guarantee selection, course choice, roommate choice, fee waiver, college scholarship, or admission advantage |
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| Session dates or duration | Unconfirmed — check official site | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site | Starts June 13, 2027; Ends July 3, 2027; 3 weeks (2027 cycle) |
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| Format | Online / In person | In person | In person |
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| Housing and supervision | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Marlborough, NEIA day/residential or online, not Wellesley | New residential campus for 2027 is not announced; Amherst, Massachusetts was the historical 2026 location | Columbia |
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| Selection and application | Unconfirmed — check official site | Selection: Application review uses the form, letter, Interesting Test, and mathematical sponsor recommendation; no current acceptance rate or 2027 capacity is published. Application materials: One sponsor who knows the applicant in a mathematical context and can provide a recommendation | Selection: School nomination allotments limit the pool, a statewide committee evaluates academic and qualitative criteria, and about 330 scholars are expected in 2027. MSA does not publish a current nomination count or acceptance rate. Application materials: Two PDF recommendation letters, at least one from a teacher and none from parents or guardians; Two named PDF essays of 300-350 words responding to the current character-identification and social-issue prompts |
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| Official sources | Source 1 · checked 2026-10-10Source 2 · checked 2026-10-10 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20 | Source 1 · checked 2026-10-12Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22Source 5 · checked 2026-08-20 |
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