What "project-based" should mean
Plenty of schools say they're project-based. The useful definition comes from PBLWorks (formerly the Buck Institute), whose "Gold Standard" project design has seven elements: a challenging problem or question, sustained inquiry, authenticity, student voice and choice, reflection, critique and revision, and a public product. In practice, the question to ask is simple: does your child finish things that someone outside the class could see? A game, a short film, a published story, a working robot.
The research is encouraging, with a caveat. In a randomized trial of elementary science in 46 Michigan schools, third graders in project-based classrooms scored 8 percentage points higher than peers, including struggling readers. A randomized study of AP Government and AP Environmental Science found project-based classes raised the share of students passing the AP exam by 8 to 10 percentage points. These studies were in-person classrooms with trained teachers, so the details of how an online school runs its projects matter a lot.
The options at a glance
| School | Grades | How projects work | Live time | Tuition | ESA |
|---|---|---|---|---|---|
| Recess | 2-10 | 200+ challenges plus electives, building to a year-end capstone | Full school day, 9 to 5 PT, live small-group academics and electives | Tuition with aid; many ESA families pay $0 | Yes, in 10 states incl. AZ, FL, UT, AR |
| Prisma | 4-12 | Interdisciplinary themed projects in a cohort | About 2 to 2.5 hours a day, Mon-Thu, plus async project work | $11,190 (grades 4-8 with coach) | Yes, direct or reimbursement by state |
| Sora Schools | 6-12 | Expert-led "expeditions" and a portfolio instead of grades | About 3 hours 20 minutes, 4 days a week | $17,900 (flexible from $7,500) | AZ, UT, WV, NH |
| CMASAS | K-12 | Projects inside a personalized, mostly self-paced plan | Weekly live homeroom and coaching | About $6,995-$8,750 for K-8 | AZ, TN pilot, TX |
| Khan World School at ASU Prep | 6-12 | Real-world problem solving alongside daily seminars | Daily small-group seminars | Free in AZ; about $10,500 elsewhere | Free public option in AZ |
Tuition figures are published 2026-27 prices and change often.
Recess
Grades 2-10. Recess is a full-time online school, and projects sit alongside live core academics. Math, English, science and history are taught live in small group cohorts and are mastery-based. Around that, students work through over 200 challenges across math, music, writing, code and entrepreneurship, small enough to start today and ambitious enough to end in a published book or a shipped game. The artifacts they finish stack into a portfolio, and challenges and personal projects build toward a year-end capstone of the student's own: the game, the robot, the invention.
Electives run in small groups of 5 to 10, in areas like coding, game design, hands-on science and engineering, worldbuilding and digital art. Each school day also starts in a small learning pod with the same group and the same Recess adult, and there's a supervised community hour every day.
Recess students scored at a median of the 89th percentile in math and 91st in reading on NWEA MAP Growth in 2025-26, which matters for parents who worry that projects come at the expense of fundamentals. Arizona families enroll in the Recess school itself; families in other states access Recess through an accredited partner school in the Recess school network, which issues transcripts, or through Recess's online learning program. See Recess for builders and engineers.
Best for: kids from 2nd grade up who want to build real things and need a full, structured day with live teachers and friends.
Prisma
Grades 4-12. Prisma organizes learning around interdisciplinary themes, with students in live cohorts of about 20 to 25 and the same coach, often for several years. Live workshops run about 2 to 2.5 hours a day Monday through Thursday, with about 2 hours of asynchronous project work and a flexible Friday. Grades 4-8 tuition is $11,190 with a Prisma coach or $5,350 if a parent coaches. Prisma is Cognia-accredited.
Best for: self-directed kids in grade 4 and up who enjoy themed projects, with a parent available for the rest of the day.
Sora Schools
Grades 6-12. Sora students pick three or four expert-led "expeditions" each trimester from a catalog of more than 400, and build a portfolio in place of traditional grades. Live classes and office hours run about 3 hours 20 minutes on four days, with Wednesday for community activities. Full tuition is $17,900, with flexible tuition from $7,500. Sora is accredited by Cognia and WASC.
Best for: middle and high schoolers who want a college-style choice of topics. Sora doesn't serve elementary grades.
Christa McAuliffe Academy School of Arts and Sciences (CMASAS)
Grades K-12. CMASAS is a WASC-accredited online private school built around a personalized education plan with a coach, a weekly live homeroom and mastery-based courses. Project-based learning is one part of the model, but most work is asynchronous, so it's closer to a self-paced school with projects than a live project-based cohort. Elementary tuition runs about $6,995 to $7,995.
Best for: independent learners who want flexibility and one-on-one coaching.
Khan World School at ASU Prep
Grades 6-12. Mastery-based online coursework paired with daily Socratic seminars in small groups and real-world problem solving. It's seminar-led more than project-led, free for Arizona residents, and about $10,500 a year for students elsewhere in the U.S.
Best for: strong readers and discussers in middle and high school.
Project-based supplements (not full schools)
Some well-known names are part-time programs: Kubrio (formerly Galileo) is a self-paced project platform for ages 6-13 at about an hour a day, and Synthesis runs a weekly live team-games class. They pair well with homeschooling but don't replace a school day.
How to compare project-based schools
- Ask to see finished student work. Real projects leave artifacts. If a school can't show you a portfolio, the "projects" may be worksheets with a theme.
- Check how fundamentals are covered. Projects should sit on top of solid math and reading instruction. Ask for nationally normed results like MAP Growth.
- Count live hours. Two hours of live time four days a week and a full day of live classes are very different commitments for a parent.
- Look at grade range. Many project-based schools start at grade 4 or 6. For younger kids, the options narrow quickly.
- Check ESA eligibility. In states with ESAs, a full award can cover much or all of tuition. See online schools that accept ESA funding.