How to Get Into Proof School: A Complete Admissions Guide for San Francisco Parents

Quick Answer for Busy Parents

Proof School is a small, need-blind independent day school in San Francisco for grades 6–12, built for kids who love math and want a liberal arts education to match. Admission runs through Ravenna each fall and includes a parent questionnaire, a student questionnaire, transcripts, a recommendation letter, a math diagnostic, and a problem-solving assessment called the Math Ollie. Applications open in September and are due January 8, with decisions released March 19.

Why Do Families Choose Proof School?

Proof School opened in the fall of 2015, co-founded by Paul Zeitz, chair of the mathematics department at the University of San Francisco, co-founder of the Bay Area Mathematical Olympiad, and author of The Art and Craft of Problem Solving, along with Ian Brown and Dennis Leary. The founders built the school around math circles, a collaborative, discussion-driven tradition of mathematical exploration, on the premise that kids who love math thrive in a tight-knit community of peers who share that love rather than feel like outliers in a conventional classroom.

The school is accredited by the Western Association of Schools and Colleges (WASC) and today enrolls students who commute from across the Bay Area, many spending one to three hours a day in transit, and about 20 who have moved to the region specifically to attend. Its mission is to offer a transformative liberal arts education to young people with an active curiosity and a passion for mathematics, equipping them to reason, communicate, and positively impact their world.

How Hard Is It to Get Into Proof School?

Proof School does not publish an acceptance rate, and with roughly 130 students across seven grades, its incoming classes are small by design. What makes admission genuinely difficult is not test scores: the school is explicit that “good grades are not enough,” and instead looks for an authentic, sustained love of mathematics alongside the curiosity, collaboration, and kindness it values in every applicant. Families most often compare Proof School to other highly selective Bay Area independent schools known for serving academically intense students, such as The Nueva School and The Harker School, though Proof is the only one built entirely around a mathematics-first identity.

Admissions officers weigh the math diagnostic and Math Ollie alongside transcripts, recommendations, and the parent and student questionnaires, looking collectively for a student who is ready for a specific level of math (anywhere from Algebra 1 to calculus and beyond) and who will contribute meaningfully to a small, collaborative community.

Top Tips for Applying

• Ensure the application highlights the student’s genuine intellectual curiosity rather than just academic achievement.
• Use the Math Ollie to demonstrate the student’s problem-solving process and persistence.
• Apply for the grade and math level that best fits the student, as there is no single right profile.

Best Practices for Families

• Attend the fall Admissions Open House before applying; it is the clearest way to gauge fit with Proof’s small, discussion-heavy classroom culture.
• Prepare for the parent interview by reflecting on why a math-focused liberal arts education is the right fit for your child.
• Use the application essays and questionnaires to explain, in the family’s own words, why a math-first liberal arts education specifically fits this child.

What Is the Admissions Process at Proof School?

When applying to Proof School, your first step is creating a Ravenna account. This parent portal lets you manage your child’s profile and submit application materials.

1. Attend a Virtual or On-Campus Open House
2. Submit the Preliminary Requirements — Parent Statement, Student Interest Form
3. Complete the Proof School Math Assessment
4. Attend the Campus Visit & Shadow Day
5. Schedule the Parent/Family Interview
6. Designate Recommendation — Current math & English teacher, School Principal/Counselor
7. Upload Transcript — Current & previous two years
8. Await Admissions Decision

The Proof School Admissions Calendar and Key Dates

What Are the Proof School Application Requirements?

Parent Questionnaire

In applying to Proof School, parents are required to answer a parent questionnaire. This form focuses on your family’s perspective regarding your child’s relationship to mathematics and their potential fit within a small, collaborative school community. This is the part where you will need to show that not only is your family a good fit for the school, but that the school is also a good fit for the family.

How to write a compelling parent questionnaire:

Focus on specific examples that illustrate your child’s character, values, and personal development instead of simply listing accomplishments. Connect these qualities to Proof’s mission and vision. Learn how to write a compelling private school parent statement that leaves a lasting impression on admissions officers.

Student Questionnaire

The student questionnaire provides the admissions committee with a direct sense of your voice and perspective. This form focuses on your specific mathematical interests, curiosity, and problem-solving approach, offering insight into how you might contribute to Proof School’s collaborative community. This is your opportunity to show that Proof School is the right environment for your intellectual growth and genuine love of math.

How to write an effective student questionnaire:

Focus on highlighting a particular moment of mathematical discovery or a unique problem-solving experience rather than attempting to summarize an entire childhood of extracurriculars. Specific, narrow examples often make a stronger impression than a long list of achievements, helping your authentic interest in math stand out. Learn how to develop an authentic writing voice that helps your student statements stand out.

Math Diagnostic and the Math Ollie

Applicants complete a math diagnostic to help place them at an appropriate level, alongside the Math Ollie: a fun, problem-solving-oriented assessment unique to Proof School that rewards persistence and creative reasoning over speed.

How to prepare for the math track at Proof:

While the Math Ollie and diagnostic measure process and aptitude, some families choose to work with a specialized math tutor to build the foundational problem-solving skills and confidence necessary to approach these assessments effectively.

Transcripts

The Proof School applicants must upload academic transcripts for the current school year and the previous two years directly through the Ravenna parent portal.

How to improve grades:

If grades have been a genuine struggle, improving them before applying requires targeted, consistent support—not last-minute cramming. This is where tutoring and academic coaching help strengthen the student’s key skills months before applications are due, allowing students to demonstrate meaningful, sustained academic growth.

Recommendation Letters

Proof School requires confidential recommendations from the student’s current math and English teachers, as well as a report from their school principal or counselor, all of which are submitted via Ravenna.

How to get the best recommendation letter:

To secure a strong recommendation letter, it is crucial for your child to build a genuine relationship with the teachers. Your child’s leadership in the school community is as important as their academic performance. For the recommendation to be of value, the teachers, principal, or school counselor must be able to talk about how your child plays a big role in the school community in terms of their leadership and how they model good behavior and excellent academic performance for their peers.

Applying to Proof School?

Cardinal Education’s admissions consultants help families put together a strong, authentic Proof School application, from the Math Ollie to the parent questionnaire.

Schedule a Consultation

What Is the Student Life Like at Proof School

Life at Proof School extends far beyond the classroom, defined by a vibrant, tight-knit community of students who share a genuine enthusiasm for discovery. Because many students commute from across the Bay Area, the school prioritizes building a collaborative environment during the day, where students engage not just in rigorous mathematics, but in a wide array of activities, creative pursuits, and shared community experiences that turn the school into a second home.

Academics

Proof School’s schedule is unusual among Bay Area independent schools: mornings are devoted to the humanities, arts, and sciences, while every afternoon is set aside for two full hours of math. The school runs on four academic quarters, each followed by a Build Week of experiential learning. It does not offer AP classes, rank students, or calculate weighted GPAs. Instead, the school evaluates students on a 1–5 scale across both academic achievement and disposition (engagement, effort, curiosity, and contribution to others’ learning).

The math sequence is exceptionally rigorous, running from introductory algebra and geometry through college-level and graduate-adjacent electives. Students have the opportunity to delve into advanced subjects such as Discrete Math, Linear Algebra, Number Theory, Group and Ring Theory, Non-Euclidean Geometry, Point-Set and Linear Topology, Complex and Functional Analysis, Category Theory, and Axiomatic Set Theory.

Activities

Because many students commute one to three hours daily, Proof School intentionally integrates extracurricular activities into the regular school day. This structure ensures that all students can participate in enrichment opportunities regardless of their commute, maintaining the school’s commitment to a tight-knit community.

• Wednesday Mini-courses: Students explore non-academic interests such as photography, cooking, and creative writing.
• STEM Clubs: Offerings include extended science labs and web programming for deeper technical exploration.
• Build Weeks: Quarterly sessions devoted to intensive math research, collaborative arts projects, and educational field trips.
• Annual AI Tournament: An all-school competition where students apply their coding and logic skills in a friendly, competitive format.

These diverse activities foster the same collaborative spirit found in the mathematics classroom, encouraging students to build strong bonds through shared creative and intellectual pursuits.

Athletics

Proof School does not field a traditional interscholastic athletics program, reflecting its small size and the geographical spread of its commuter student body. In place of conventional sports, the school emphasizes STEM-adjacent competitive teams that align with the students’ intellectual strengths and interests.

• STEM-Adjacent Competitions: Participation in various academic team challenges that require high-level teamwork and logic.
• Proof Robotics: Team efforts in prestigious events like the Zero Robotics High School Tournament, where students code for the International Space Station.

By focusing on these technical and logic-based competitions, Proof School provides an effective alternative to conventional sports, allowing students to experience the thrill of teamwork and competition in a context that celebrates their passion for problem-solving.

Arts

At Proof School, the arts are treated as a dynamic extension of maker culture, where mathematical beauty and creative expression intersect. Students are encouraged to transform abstract concepts into tangible projects, fostering a hands-on approach to learning that permeates the entire school environment.

By integrating these creative disciplines, Proof School ensures that its math-heavy curriculum is balanced with opportunities for visualization and physical construction, helping students develop a well-rounded intellectual profile.

Summer Programs

Proof School offers intensive summer enrichment opportunities designed to deepen students’ mathematical expertise and community ties. These programs provide a space for extended exploration outside the traditional academic calendar, allowing for focused study and collaborative growth.

These programs play a vital role in maintaining student momentum, ensuring that the intellectual curiosity and collaborative spirit cultivated during the school year remain active throughout the summer months.

Notable Students & Alumni of Proof School

Proof School prepares students to lead with intellectual curiosity and rigorous problem-solving skills. Graduates excel in diverse fields like mathematics, research, science, and technology, reflecting the school’s mission to nurture deep thinkers who make meaningful contributions. Notable alumni include:

1. Hannah Fox: Earned a Silver Award at the 2025 USA Mathematical Olympiad (USAMO) while attending Proof School and represented the United States on the 2025 European Girls’ Mathematical Olympiad (EGMO) team, which placed second overall and was the only team in the competition to earn all gold medals; Fox ranked 9th individually.
2. Rivka Lipkovitz (Class of 2025): Named a 2025 Regeneron Science Talent Search finalist and placed fifth nationally for a statistical analysis of how strict voter ID laws affect election turnout, one of the country’s most prestigious research awards for high school seniors.

These alumni showcase how a Proof School education empowers students to pursue their passions and make lasting impacts. Graduates from the Classes of 2022–2025 matriculated to four-year colleges at a 100% rate, with multiple students enrolling at Harvard, MIT, Carnegie Mellon, UC Berkeley, and UC Santa Barbara.

Is Proof School the Right Fit for Your Child?

Proof School’s unique focus—a process that weighs the Math Ollie, diagnostic assessments, and specialized questionnaires—frequently trips up families relying on generic private school advice.

At Cardinal Education, our admissions consultants build a customized private school admissions strategy tailored to your child’s mathematical profile and intellectual curiosity. From guiding applicants through the Math Ollie’s creative problem-solving dynamics to coaching students to articulate their genuine passion for math, we ensure your application demonstrates deep alignment with Proof School’s collaborative, inquiry-based values.

Schedule a Consultation

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The Proof School Admissions Process: A Parent’s Timeline From Ravenna to Decision Day

Why Proof School’s Students Keep Winning National Math and Science Awards

Did You Know?

Proof School is built around “math circles,” a collaborative, discussion-driven tradition of mathematical exploration. This philosophy assumes that students who love math thrive best when they are part of a tight-knit community of peers who share that same passion for discovery.

My kid was always fine at math but never really loved it, if that makes sense. Cardinal’s tutors changed that. They didn’t just drill problems, they got him actually thinking out loud, defending his reasoning, all the stuff that ended up mattering so much once he got to Proof School. Honestly I think it’s the reason he walked into those math circles feeling like he belonged there instead of playing catch-up.

— Proof School Parent