zearn: video lessons
Zearn (http://www.zearn.org) is a non-profit whose mission is to provide access to a great mathematics education for all students. It is centred around a comprehensive curriculum that teachers use in classroom in the form of a web app. The application is composed of a variety of digital products that make up K through 5th grade lessons. My work at Zearn focused on digitalising the classroom experience, both in terms of student exercises (manipulatives) and the teaching content experience, which was video-based. This was innovative because most existing digital maths lessons focused on practice exercises, rather than providing the whole curriculum content, like we were doing.