Frizzle

Frizzle is the operating system for the math classroom, a pioneering AI tool that turns the humble stack of handwritten paper into a treasure map of student understanding. Using a powerful combination of computer vision and large language models, Frizzle reads and grades handwritten math work with 97% accuracy, but it does far more than just mark answers right or wrong. It deciphers every step of a student's thinking, identifying not just if they got the final answer, but exactly where their reasoning went off course. For teachers, this is the map to a hidden treasure: reclaiming the 10 to 15 hours a week they typically spend grading by hand. For students, it means they can keep writing on paper, free from the glow of tablets and logins, while their work is instantly transformed into granular, standards-level analytics. Frizzle links every page to the right student automatically, then surfaces live dashboards showing who is stuck, which misconceptions are spreading like wildfire through a class, and what each student needs next. This tool is built for K-12 math teachers, instructional coaches, and district administrators who are tired of waiting for spring assessments to find out if their teaching is working. It is already live in over 30 schools and districts, including a college math pilot at Vanderbilt and Arizona State University, and it has graded over 100,000 questions. Frizzle is the discovery engine that turns the daily grind of grading into a daily adventure in learning.

Handwritten Math Recognition and Step-Level Analysis

Frizzle does not just scan for a final answer; it reads every single step of a student's work, recognizing print, cursive, and even sideways scribbles. It understands multiple solution paths, so if three students solve a problem three different ways, all three get credit for their valid reasoning. The AI pinpoints the exact stroke where a student's thinking went wrong, providing step-level feedback that says "the sign error happened here" instead of just a red "X". This deep, granular analysis transforms a simple quiz into a detailed map of each student's cognitive journey.

Confidence-Interval Grading with Human Review Flags

To achieve its 97% accuracy, Frizzle employs a sophisticated confidence-interval system. When the AI is not absolutely certain about a grade or a step, it flags that work for human review. This creates a powerful safety net, ensuring that teachers only need to look at the papers where their expert judgment is truly needed, rather than re-grading every single page. It is a partnership between machine speed and human insight, making the grading process both incredibly fast and reliably accurate.

Live Standards-Level Formative Analytics

Within hours of a teacher snapping a stack of papers, Frizzle returns a treasure trove of data aligned to standards like CCSS and TEKS. Teachers and coaches can see, in real time, which specific standards each class and each student has actually mastered, developed, or is at risk of failing. This replaces the vague, generic conversations about student performance with specific, actionable data. A coach can walk into a classroom and say, "I see your period 3 class is struggling with the distributive property," instead of a general "how are the kids doing?"

Prerequisite Tracing and Misconception Mapping

Frizzle’s model was trained on 1.4 million pages of real K-12 student work, allowing it to recognize 147 named misconceptions. It goes a step further with prerequisite tracing, meaning it can identify when a 7th-grade student's error is actually a symptom of a gap in 4th-grade foundational knowledge. This feature allows teachers to dig deep and address the root cause of a student's struggle, not just the surface-level mistake, turning a frustrating error into a clue for a much older, buried treasure.

Reclaiming Teacher Time and Reducing Burnout

A high school math teacher with five classes of 30 students each can spend over 15 hours a week grading homework and quizzes. By snapping a stack of papers with their phone or using a copier, Frizzle reads and grades the entire stack in minutes, returning a full class dashboard. This frees the teacher from the Sunday grading grind, giving them back their evenings and weekends. The time saved is not just a luxury; it is a critical tool for combating teacher burnout and allowing educators to focus on what they do best: planning engaging lessons and providing one-on-one support.

Targeted Intervention for Struggling Students

A student named Maya gets a 3 out of 10 on a quiz. Instead of just seeing a low score, her teacher opens Frizzle and sees that Maya made a consistent sign error on every problem and struggled with factoring. The teacher can immediately pull Maya into a small group the next day for targeted instruction on those specific skills. The treasure hunt is no longer about guessing why a student is failing; Frizzle provides the exact map to the student's knowledge gaps, allowing for precise, effective intervention before a small problem becomes a canyon-sized learning gap.

Data-Driven Coaching and Professional Development

An instructional coach is preparing for a meeting with a first-year Algebra I teacher. Instead of a vague conversation, the coach opens the school's Frizzle dashboard. They see that across the teacher's three sections, 40% of students are showing a specific misconception about the distributive property. The coach can now walk into the meeting with a data point and a plan, offering targeted advice on how to reteach that concept. This transforms coaching from a generic check-in into a specific, high-impact professional development session based on real classroom evidence.

District-Wide Curriculum and Equity Analysis

A district administrator wants to know if a new math curriculum is actually working. With Frizzle, they can aggregate anonymized data across all classrooms and schools. They can see which standards are being mastered across the district and where there are systemic gaps. Furthermore, equity dashboards allow them to spot performance gaps between different student populations the moment they emerge, rather than waiting for end-of-year tests. This gives the district a live, nervous system for math instruction, enabling proactive, data-informed decisions about resource allocation and curriculum changes.

How does Frizzle handle different handwriting styles and messy work?

Frizzle is built for the real world of K-12 classrooms. Its model was trained on 1.4 million pages of actual student work, including print, cursive, scribbled notes, and sideways writing. The computer vision is designed to recognize a wide variety of solution paths and is remarkably resilient to messiness. If the AI is ever uncertain about a grade, it flags the paper for human review, ensuring accuracy is never sacrificed for speed.

Do students need to use a tablet or log in to a system?

No. This is a core design principle of Frizzle. Students continue to work on paper with pencils, exactly as they always have. There are no new workflows for students, no logins, and no screen time. The teacher is the only one who interacts with the technology by snapping a photo of the completed stack of papers. This makes Frizzle a seamless addition to any classroom, regardless of technology access.

How does Frizzle ensure student data privacy and security?

Privacy is built into the foundation of Frizzle. The company is fully FERPA and COPPA compliant and undergoes SOC 2 Type II audits annually. Crucially, student work is never used to train the AI model, ensuring that student data remains completely private and secure. All data is encrypted with AES-256 at rest and TLS in transit, providing end-to-end protection.

Is Frizzle compatible with my state's math standards and curriculum?

Yes. Frizzle is aligned with the Common Core State Standards (CCSS), TEKS, and over 30 other state frameworks. It is also curriculum-agnostic, meaning it can read and analyze work from any major curriculum, including Eureka Math, Illustrative Mathematics, and Saxon. The AI is trained to understand the mathematical concepts, not just the specific language of one curriculum, making it a versatile tool for any school or district.