CHALKABLE: $1.3 million to NY-based Chalkable in seed round from 500 Startups (from where it graduated), Expansion Venture Capital, Great Oaks Venture Capital, and a chorus of angels. The startup provides an app store that helps teachers and parents search and purchase quality learning resources on the web, along with LMS-features like calendars, gradebooks, attendance tracking, and messaging system. More details from TechCrunch.