Primer: Parent Guide to Venture-Backed K-8 Microschool Networks

Primer is a network of private K-8 microschools founded in 2019 and headquartered in Tampa, Florida. It operates under the legal entity Spark Learning, Inc. d/b/a Primer and was co-founded by Ryan Delk, who serves as CEO, and Maksim Stepanenko, who served as President and CTO ³¹⁴. Delk, previously an executive at Omni and Gumroad, started Primer after being homeschooled by his mother, who launched one of the first microschools in Florida in the 1990s ³. The company raised a $3.7 million seed round in May 2020 led by Founders Fund, followed by a Series A in April 2022 with investors including Khosla Ventures, Sam Altman, Tobi Lutke, Tony Xu, and Kathryn Haun ⁷⁸. In September 2024, Primer was named the winner of the $1 million Yass Prize for its student-centered microschool model ⁴.

Primer serves kindergarten through eighth grade across four states: Florida, Arizona, Alabama, and Texas. The verified facts block lists 18 campuses, with 13 currently active and 5 announced for August 2026 openings ¹⁶¹⁰. Its model departs from traditional schooling through mixed-age classrooms, mastery-based progression rather than calendar-based grade promotion, technology-enabled individualized learning paths, and self-directed afternoon projects called "Pursuits" ²¹⁵. The network describes itself as inspired by early American primers and the one-room schoolhouse concept, updated with adaptive technology ¹.

Snapshot facts

Field	Detail
Official name	Primer 1
Operating status	Active network; 13 active campuses, 5 announced for 2026 110
Founded	2019 3
Founders	Ryan Delk (Co-Founder and CEO), Maksim Stepanenko (Co-Founder, former President and CTO) 314
Current leadership	Ryan Delk, Co-Founder and CEO 14
Primary location	Tampa, FL headquarters; campuses in FL, AZ, AL, TX 1
Grades served	K-8 1
Public/charter/private status	Private school network 11
Tuition model	Flexible, need-based; most families pay $0 to $3,000 per year 6
Admissions model	Open enrollment 1
Educational model	Mastery-based, mixed-age, technology-enabled microschools 215
Evidence confidence	School-reported NWEA MAP data; no independent audits 912

What it is

Primer is a venture-backed network of private microschools operated by Spark Learning, Inc. ¹⁴. The company helps teachers, called "Primer Leaders," launch and run individual microschool campuses in their communities, providing operational support, a technology platform, real estate assistance, and help with state-level regulatory approvals ¹¹. The company states it has raised more than $18 million in total funding from investors including Founders Fund, Khosla Ventures, Sam Altman, and others ¹¹¹². Primer also successfully advocated for Florida legislation (HB1285) that expanded the number of locations where private schools can operate by right, opening an estimated 50,000 new potential sites including churches, museums, and community centers ¹¹.

The network was recognized with the $1 million Yass Prize in September 2024, cited for its personalized, student-centered approach and its use of technology to group students by skill level across campuses ⁴⁵. At the time of the award, the Yass Prize noted Primer had grown from 5 pilot microschools to 23 schools ⁴.

Educational model

Primer's model centers on mastery-based progression: students advance when they demonstrate understanding, not according to a fixed calendar ²¹⁵. Subjects are decoupled, meaning a student's level in math does not determine their level in reading, allowing for personalized pacing across disciplines ¹⁵. The network uses skill-based grouping across campuses, enabling students to learn alongside peers at similar skill levels regardless of their physical location ¹⁵.

Each student begins with a nationally normed assessment, the NWEA MAP test, to establish baseline levels in math and literacy ²⁹. The system then builds an individualized academic model incorporating direct instruction from the teacher, virtual instruction for targeted remediation, software-based learning tools (including Khan Academy, Newsela, and Frax), and collaborative group work ⁹. Mornings are devoted to individualized core academics; afternoons focus on "Pursuits," self-directed projects that increase in complexity as students age, from building community gardens to launching podcasts or starting companies ⁹¹⁵.

A technology platform tracks daily progress through exit tickets and data from multiple learning applications, providing teachers, parents, and students with a shared, real-time view of each student's growth trajectory and projected outcomes ²⁹.

Student experience

Classrooms are small and mixed-age, modeled on what Primer calls a "modern one-room schoolhouse" ¹. Each microschool is led by a Primer Leader, typically a former traditional school teacher, with classrooms capped at 28 students; once enrollment exceeds 19, a "studio guide" is added ¹². The network reports that more than 80% of its teachers represent the student communities they serve ⁵.

Campuses operate in existing community spaces such as churches, community centers, libraries, and performing arts centers, which keeps facilities costs low ¹¹. Students experience a blend of individualized academic work in the mornings and hands-on, interest-driven projects in the afternoons, with an explicit emphasis on building student agency and ownership of learning ⁹¹⁵.

Curriculum, assessment, and progression

Core academics cover math, reading, and writing as fundamentals, with science, social studies, and history delivered through afternoon Pursuits projects ⁹. The curriculum is aligned to state standards, and the system projects each student's expected growth based on their individual learning velocity ⁹.

Formal NWEA MAP testing occurs three times per year, and parents, teachers, and students all receive the same data ⁹¹². CEO Ryan Delk has stated that Primer uses this external, nationally normed assessment deliberately, in contrast to what he describes as the "black box" internal metrics used by some alternative schools ⁹. Progress is tracked through weekly goals, daily updates, and formal benchmarks three times annually ².

Public, charter, private, nonprofit, program, network, or platform status

Primer operates as a network of private schools. The company states that its schools are registered to operate as private schools in each state's Department of Education ¹¹. In Florida, private schools are not licensed, approved, accredited, or regulated by the State Board of Education; the only state-level requirement is registration with the Florida Department of Education and completion of an annual database survey ¹⁶. The verified facts block lists a recognition from the Florida Department of Education categorized as "approval," sourced from Primer's own website ¹. The accreditations field in the verified block is empty. The company has stated that its schools are "usually accredited one to two years after opening" ¹¹.

Primer is a for-profit entity at the corporate level, operating under Spark Learning, Inc. ¹⁴. It also maintains a philanthropic arm, the Primer Foundation, which provides scholarships to reduce tuition costs ¹⁰¹³.

Locations and availability

Primer operates 18 campuses across four states: 13 active and 5 announced for August 2026 ¹⁶¹⁰.

Alabama has 3 active campuses (Birmingham, Huntsville, and Montgomery) and 1 announced (Dothan) ⁶¹⁸. Arizona has 1 active campus (Scottsdale); a Tempe campus referenced in 2024 coverage does not appear on current official state pages. Florida has 9 active campuses (Coconut Grove in Coral Gables, Fort Lauderdale, Kendall and Liberty City in Miami, Miami Shores, Ocala, Homestead, Milton-Pace, and Tampa) and 1 announced (Babcock Ranch) ¹¹⁷. Texas has 3 announced San Antonio campuses (Live Oak, University Heights, and Potranco) for August 2026 ¹⁰.

The verified campus notes indicate that Texas currently lists three named San Antonio campuses despite earlier references to at least five. A possible Mobile, Alabama site was mentioned in a May 2026 Birmingham report but is not listed on Primer's official Alabama pages.

Primer is described as offering hybrid availability, but it is not a fully online school; all campuses are physical locations.

Tuition, admissions, and eligibility

Primer's tuition is flexible and need-based, with significant variation by state. The verified block indicates a general aid band of $0 to $3,000 per year for most families ⁶.

In Alabama, tuition is $500 per year for all families, supported through a partnership with Scholarships for Kids ⁶¹⁸. In Texas, Primer guarantees $0 tuition for 2026 openings by supporting families' applications to the Texas Education Freedom Accounts (TEFA) program, covering costs through its own foundation if state scholarships are not awarded ⁶¹⁰. In Florida and Arizona, tuition is income-based, with typical out-of-pocket costs ranging from $0 to $3,200 per year ⁶. The Milton-Pace, Florida campus lists tuition at $14,000 for 2026, which campus notes attribute to local reporting for the 2025-26 academic year ¹⁷.

Primer accepts Education Savings Account (ESA) funds in all four states where it operates: Florida, Arizona, Alabama, and Texas ⁶. In Florida, it partners with Step Up for Students to accept Florida Empowerment Scholarships and Florida Tax-Credit Scholarships ⁶. Tuition is paid in 10 monthly installments, with a 15% discount for upfront payment ⁶.

Admissions operate on an open enrollment basis through Primer's website. The company reported receiving 1,800 applications from prospective microschool leaders and launching 18 schools, indicating selective selection of campus leaders rather than students ¹¹.

Credits, transcripts, diplomas, certifications, and accreditation

• The verified facts block lists no accreditations held by Primer.
• The company has stated that its schools are usually accredited one to two years after opening ¹¹.
• As private schools, Primer's campuses are responsible for their own policies on credits, transcripts, and accreditations; in Florida, the state provides no curriculum review or accreditation oversight for private schools ¹⁶.
• No information about diplomas, certifications, or credit transfer policies was available in the verified block or retrieved sources.

Evidence and outcomes

Primer uses the NWEA MAP test three times annually as its primary external assessment ⁹¹². The company reports that students achieve 60 to 95% more growth than peers and 12% more learning on average each year (school-reported) ¹³. The Philanthropy Roundtable reports that approximately 30% of Primer's students start two or more grade levels behind in reading and math (school-reported) ¹³. CEO Ryan Delk has stated that Primer's schools are "outperforming the average school in the U.S." (school-reported) ¹².

No independently audited outcome data or third-party evaluations were identified in the verified block or retrieved sources. The Yass Prize recognition provides external validation of the model's approach but does not constitute an academic audit ⁴.

Best fit

Primer may be a fit for families seeking a small, personalized learning environment with mixed-age classrooms and real-time progress tracking. Families eligible for ESA or state scholarship programs in Florida, Arizona, Alabama, or Texas may find tuition accessible, particularly in states where Primer guarantees low or zero out-of-pocket costs. The model emphasizes student agency and project-based learning alongside fundamentals in reading, writing, and math. Families should note that Primer serves K-8 only, holds no listed accreditations, and operates as a private school network without state curriculum oversight in Florida.

Questions parents should ask

1. What is the current accreditation status of the specific campus I am considering, and has the company's stated one-to-two-year timeline for accreditation been met?
2. How will my child's credits and records transfer if they move to a traditional public or private high school?
3. What is the exact out-of-pocket tuition after applying state scholarships and need-based aid for my household income level?
4. What happens to enrollment if a state scholarship is not awarded or if an announced campus does not open as scheduled?
5. How do Primer's NWEA MAP results compare to district-level performance data for my area, and can the school share campus-level results?

Sources

[1] "Primer | School for What's Ahead," Primer, https://primer.com/, accessed July 22, 2026. [2] "The Primer Approach | Fundamentals, Mastery, Real," Primer, https://primer.com/approach, accessed July 22, 2026. [3] "Primer: An Origin Story," Primer, https://primer.com/news/primer-an-origin-story, accessed July 22, 2026. [4] "Primer Microschools is named 2024 Yass Prize Winner," Yass Prize, https://yassprize.org/updates/primer-microschools-is-named-2024-yass-prize-winner/, accessed July 22, 2026. [5] "Primer Microschools," Yass Prize, https://yassprize.org/awardees/primer-microschools/, accessed July 22, 2026. [6] "Primer Tuition | Costs & State Scholarships," Primer, https://primer.com/tuition, accessed July 22, 2026. [7] "Homeschooling startup Primer closes $3.7M seed round led by Founders Fund," TechCrunch, https://techcrunch.com/2020/05/12/homeschooling-startup-primer-closes-3-7m-seed-round-led-by-founders-fund/, accessed July 22, 2026. [8] "Primer: The Ambitious Home for Ambitious [Kids]," Not Boring, https://www.notboring.co/p/primer-the-ambitious-home-for-ambitious, accessed July 22, 2026. [9] "Inside Primer's Growing Network," Michael B. Horn, https://michaelbhorn.substack.com/p/inside-primers-growing-network, accessed July 22, 2026. [10] "Meet the micro school coming to San Antonio from out of state," San Antonio Report, https://sanantonioreport.org/florida-based-primer-microschools-new-texas-education-freedom-accounts/, accessed July 22, 2026. [11] "Exclusive: Primer, a VC-backed startup helping teachers launch their own microschools, notches legislative victory in Florida," Yahoo Finance, https://finance.yahoo.com/news/exclusive-primer-vc-backed-startup-114907393.html, accessed July 22, 2026. [12] "Florida Microschools: Primer Aims to Shift Education Landscape," Broward Palm Beach New Times, https://www.browardpalmbeach.com/news/florida-microschools-primer-aims-to-shift-education-landscape-17212915/, accessed July 22, 2026. [13] "Creating Sustainable Microschools With Primer Foundation," Philanthropy Roundtable, https://www.philanthropyroundtable.org/creating-sustainable-microschools-with-primer-foundation/, accessed July 22, 2026. [14] "About Primer | The Timeless Foundations of American Education," Primer, https://primer.com/company, accessed July 22, 2026. [15] "Primer | A New Kind of School," Primer, https://primer.com/p/learn-more-v2, accessed July 22, 2026. [16] "Opening A Private School," Florida Department of Education, https://www.fldoe.org/schools/school-choice/private-schools/opening-a-private-school.stml, accessed July 22, 2026. [17] "Primer | Milton-Pace," Primer, https://primer.com/schools/milton-pace-fl, accessed July 22, 2026. [18] "Primer | Birmingham," Primer, https://primer.com/schools/birmingham-al, accessed July 22, 2026.