Discover the world's best K-12 curriculum

THere are a lot of curriculum repositories on the web and new ones crop up all the time. This is one of them. One way this site seems to have tried to differentiate itself is by enlisting the help of some prominent math teacher-bloggers for curating some of their content. Now they list a high school student as their content expert -- let's just say that's not ideal, but as a nonprofit in an increasingly crowded space that lacks good revenue models, maybe that's just making the most out of who you have available.