Check out the soft launch of the Cubberley Historical Curriculum Resource Collection database. These are materials written mostly for teachers by national, state and local boards/departments of education, as well as other groups devoted to improving instruction.
This collection is not in SearchWorks and is stored in the basement, so this database is the best way to discover just what we have. It remains a work in progress. Of the several thousand of items in the collection, nearly half have been input. The email function is not yet working properly, but there is still much to see, including the interactive map that Jacque Hettel created which allows you to quickly see just what items we have from Hawaii or South Africa or whatever state or country takes your fancy. Many thanks to Jacque for all her hard work on this.