Flocabulary.

Blake Harrison and Alex Rappaport hooked up in 2004 to create a line of groundbreaking educational programs by working closely with hip-hop artists and educators. By April 2005, they had completed their first full length album, featuring 12 songs that define 500 SAT vocabulary words. A book deal soon came after that, and a year later, the Hip-Hop U.S. History in December, 2006. That project, which aims to teach students American history through fact-filled narrative raps, was praised by Cornel West and Howard Zinn as “extraordinary” and “necessary.” In 2008, Flocabulary expanded their line of educational programs to include products for math and science. They also completed a multi-leveled vocabulary program called The Word Up Project, which uses best practices in vocabulary instruction and story-based rap songs to teach vocabulary words. It’s currently available for students in grades 3-10.

[Via Flocabulary]