classroom-tools
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The Quiz App That Ate 90% of American Schools Just Changed Its Name
Two Indian engineers built a math game nobody could keep fed with content. So they handed the tools to teachers instead - and accidentally built one of the most-used classroom platforms on Earth.
SplashLearn
SplashLearn (operated by StudyPad, Inc.) is a game-based learning platform for children in preschool through Grade 5, focused on math and reading. Founded in 2010 by four friends who saw the iPad as a natural learning device for kids, it now serves more than 40 million learners across 150+ countries and is used by hundreds of thousands of teachers and schools. The platform pairs an adaptive, curriculum-aligned library of 6,500+ games and activities with live small-group classes, aiming to turn children into confident, self-motivated learners.
Padlet
Padlet is a San Francisco- and Singapore-based software company behind the popular collaborative platform of the same name, where users post text, images, links, files, and audio to shared digital bulletin boards called 'padlets'. Founded in 2008 as Wallwisher by Nitesh Goel and Pranav Piyush, the company grew into one of education technology's most widely used tools, reporting tens of millions of monthly active users - most of them teachers and students. It has since expanded beyond bulletin boards into an infinite-canvas whiteboard called Sandbox and a suite of AI creation tools, while remaining a small, largely bootstrapped team.