The PeerTeach mission

We believe in empowering students to unlock their full potential and transform middle school math classrooms into thriving learning communities. Our mission is to equip students with the skills to tutor their peers effectively, fostering strong relationships and boosting academic achievement.

Backed by the biggest names in education

Our Team

  • Dr. Soren Rosier, Founder

    Soren is the driving force behind PeerTeach, where he oversees product development and leads a team of talented engineers and designers. He is also a lecturer at Stanford University's Graduate School of Education, where he teaches courses on designing impactful tools for learning and formerly completed his PhD in Learning Sciences and Technology Design. Before PeerTeach, Soren co-led Stanford's Learning Design & Technology Masters program, preparing a new generation of ed tech innovators. A Harvard graduate, Soren began his career as a middle school teacher in Oakland and later worked at SRI International, where he developed and evaluated blended learning applications, including well-known ed tech tools like Khan Academy. Residing in Berkeley with his fiancée Erika and their charismatic cat Morty, the trio loves cheering on the Golden State Warriors and enjoying the East Bay food scene.

  • Kreg Moccia, Co-Founder

    Kreg brings a wealth of K-12 leadership experience to PeerTeach, where he runs school outreach, onboarding, implementation, and support. Kreg spent 8 years as a teacher and school leader at MATCH and Achievement First charter schools. As a teacher, he raised his students’ algebra proficiency from 37% to 92%. As a school leader, he contributed to some of the highest AP exam pass rates among peer charter organizations nationwide. Kreg also managed academics and operations at an online math tutoring company, where he trained a remote team of tutors that served thousands of students across the US and Canada. He holds a BA from Harvard, where he studied alongside Soren, and a MA from the Relay Graduate School of Education. Currently residing in Oakland, Kreg and his wife enjoy exploring the outdoors through hiking, running lively board game nights, and honing their budding pickleball skills.

  • Lindsay Spears, Director of Curriculum

    Lindsay leads curriculum development at PeerTeach, creating meaningful learning experiences for students through the materials her team crafts. Prior to joining PeerTeach, Lindsay led the math team at Khan Academy. She also taught secondary math for 8 years and created graduate level coursework for math educators. Lindsay studied Nonprofit Administration at the University of Notre Dame. When she is not creating content, Lindsay loves traveling to a new place, playing or watching sports (especially the US women’s soccer team), and solving jigsaw puzzles without first knowing what picture it will create. Lindsay lives in Virginia with the people who make her laugh the most, her partner and her three kids.

  • Krishan Mourya, Senior Software Engineer

    Krishan is the lead engineer on the PeerTeach engineering team. With 9 years of experience as a full stack software developer, Krishan has a proven track record of building innovative and user-friendly technology that improves the lives of others. Krishan has previously worked with health and transportation engineering teams, developing software applications to manage complex challenges in these industries. Krishan is a master of Python, Javascript, React, Nodejs, Rust, and Flutter. Krishan is a collaborative team player who enjoys working with others to solve complex problems and deliver results that exceed expectations.

  • Katie Kaplan, School Partnerships Manager

    Katie is the School Partnerships Manager at PeerTeach, leveraging over a decade of experience in education to build strong relationships with school and district partners. Katie plays a pivotal role in training and onboarding teachers, equipping them with the tools to implement PeerTeach effectively. Before joining the PeerTeach team, she excelled as a classroom teacher, instructional leader, and curriculum developer. Most recently, she worked as an educator and Dean of Mathematics in charter schools. As a former PeerTeach user herself, Katie consistently achieved some of the best results across all PeerTeach classrooms, showcasing her deep understanding of the platform and how to supplement it with effective teaching practices. Katie lives in North Carolina with her husband and their energetic dog, Marlow. In her spare time, you can find her playing golf, pickleball, and board games.

  • Jackie Roeber, Curriculum Designer

    Jackie collaborates with the curriculum team to design meaningful, engaging learning experiences for students. She brings over 26 years of experience as an elementary and middle school educator, mathematics specialist, instructional coach, and school administrator. Jackie studied Elementary Education at the University of Wisconsin-Madison. She later earned a masters degree in Curriculum and Instruction from National-Louis University and a masters in Educational Leadership from Arizona State University. Jackie enjoys listening to music, singing, playing the piano, and traveling to beautiful places. Jackie currently lives in Arizona and loves spending time with her husband, daughter, stepdaughter, and her two adorable dogs.

  • Ojas Karnavat, Product Manager

    Ojas Karnavat is an undergrad at UC Berkeley who started working with the PeerTeach team as a freshman in high school. Having gone through PeerTeach himself and loved it, Ojas became a dedicated team member and thoughtful advocate for creating the best possible student experiences. Ojas brought PeerTeach international for the first time with a pilot study in India in 7th grade classrooms.

  • Amy Hu, Learning Experience Designer

    Amy is currently a senior at Monta Vista High in Cupertino, CA. She supports the PeerTeach team in developing meaningful learning experiences for students, conducting ongoing research through focus groups and user interviews. Amy also supports in the creation of PeerTeach trainings and curriculum.

  • Samyak Karnavat, Engineer

    Samyak is as a full-stack developer for PeerTeach, specializing in data science, artificial intelligence and machine learning. Previously, he obtained his Bachelor’s degree at UC San Diego and worked as a Software Development Engineer at Amazon.

  • Sabrina Bedford, 2D Art Lead

    Sabrina is the lead artist for PeerTeach's interactive educational system, the Galaxy Games. She is responsible for concept designs and asset development including avatars, backgrounds, props, and animations. Sabrina brings a decade of experience illustrating and designing dozens of published book titles and other products in digital and traditional media. She holds a MA in Visual Development from Academy of Art University and a BFA in Art and English from Stanford University. Sabrina currently resides in Santa Clara with her husband Andrew. In her free time, she loves drawing, writing, and hiking.

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