All the teaching resources are available for free here. The teachers created the curriculum, which was funded by the Library of Congress, as part of their master’s work at Southern Illinois ...

Finding that the best teaching materials were not district-purchased textbook but teacher-created and swapped resources, he founded the online marketplace TeachersPayTeachers (TPT) in 2006.

Keeping information fresh and up to date in a quickly moving world is one of the biggest reasons districts are starting to get more serious about the power of teacher-created open resources. Districts ...