teacher-tools
(12)
The 40-Year-Old Quiz Company Trying to Become the Operating System for Learning
Renaissance began with a reading quiz built in a Wisconsin basement. Four decades and a string of acquisitions later, it is betting that the next big classroom product is not another app, but a connected path from assessment to action.
Newsela
Newsela began with a useful classroom trick: make the same story readable at five levels. Thirteen years later, it is assembling instruction, assessment and student data into one district-sized system - without giving up the editorial engine that made teachers notice.
HMH
It started as a Boston book publisher in 1832. Today HMH wants to be the software layer between the test a student takes and the lesson they get next.
Atomi
Atomi is a Sydney-based edtech company that runs an online teaching and learning platform for high school. It pairs short, curriculum-aligned videos with interactive quizzes, AI-driven revision recommendations and real-time analytics, serving students, teachers and schools across Australia and the UK. Founded in 2013 as HSC Hub by Rob Barakat and Thomas O'Donahoo, the company now reaches over a million students and teachers and covers hundreds of subjects across all high school year levels.
Excellence
Excellence is a Y Combinator-backed (W25) AI education platform, founded by three Stanford-trained builders, that turns generative AI into a genuine learning tool rather than a homework-answer machine. Designed with teachers, it lets educators generate personalized assignments and exams, create interactive materials, and track student progress, while giving students an AI tutor that asks progressive questions instead of handing over answers. It began as an AI tutor for maths and science aimed at replacing costly private tutoring and long-term programs like Kumon.
Toddle - Your Teaching Partner
Toddle is an AI-powered, teacher-built teaching and learning platform for K-12 schools that unifies curriculum planning, assessments, gradebook, student portfolios, progress reports, family communication and class operations in one system. Founded in 2019 by educators, it is officially licensed by the International Baccalaureate and is used by 2,000+ schools across 100+ countries, with a mission to save teachers time and amplify their impact.
Flint
Flint is an AI-powered personalized learning platform built for K-12 schools. It lets teachers design AI tutors, activities, and assessments that adapt to each student across every subject - from language speaking practice to guided science labs - while giving educators real-time visibility into student progress without adding to their workload. Founded in 2023 and backed by Y Combinator, Flint raised a $15M Series A in November 2025 and serves hundreds of schools and hundreds of thousands of students worldwide.
LiveSchool
LiveSchool is a K-12 behavior tracking and rewards platform built to make Positive Behavioral Interventions and Supports (PBIS) simple to run at scale. Teachers award or deduct points in seconds from a phone or browser, students redeem points in a paperless school rewards store, and administrators watch school culture data update in real time. Founded in Nashville in 2011 by former middle-school teacher Matt Rubinstein, the company helps roughly 1,200+ schools shift the focus from punishment to recognition, sending families a weekly behavior recap so students, teachers, and parents stay on the same team.
NoRedInk
NoRedInk is a K-12 writing platform used in more than 10,000 schools that helps students in grades 3-12 become stronger writers through adaptive, interest-based exercises, scaffolded composition tools, and an AI-powered Grading Assistant that cuts teacher grading time roughly in half. Founded in 2012 by former Chicago English teacher Jeff Scheur, the company builds around a taxonomy of common student writing errors and personalizes practice using topics students actually care about. Students have completed billions of exercises on the platform.
Classkick
Classkick is a Chicago-based education technology company that makes a digital formative-assessment platform where teachers watch students work in real time and give instant feedback. Founded by former Teach for America math teacher and ex-Google/YouTube engineer Andrew Rowland, the tool lets teachers build or import interactive assignments, draw directly on each student's canvas, drop reusable feedback stickers, and auto-grade multiple-choice and fill-in-the-blank answers. Students can raise a virtual hand for help - even anonymously - and ask peers. Used by more than 10 million users across all 50 U.S. states and dozens of countries, Classkick's pitch is simple: more tries for kids every day, and less grading busywork for teachers.
Classtime
Classtime is a Zurich- and US-based education technology company building a web-based platform for formative and summative assessments. Teachers use it to create and grade quizzes, run collaborative challenges, and watch student understanding update in real time across any device. Founded in 2016, it serves hundreds of thousands of teachers and learners in more than 60 countries, with a free library of 30,000+ standards-aligned questions and a focus on grounding its design in learning science.
Prisms
Prisms (legally Prisms of Reality) is a San Francisco-based education-technology company building the first spatial learning platform for K-12 math and science. Students don VR headsets and walk through problems - tsunamis, viral outbreaks, exponential growth - before ever picking up a pencil. Founded in 2020 by MIT-trained educator Anurupa Ganguly, the company now reaches hundreds of thousands of students across most US states.