Open Up Resources and Illustrative Mathematics have designed a middle school math curriculum, and build a custom content management system and authoring environment. The system allows for a number of output formats, including print-ready PDF, HTML, and Common Cartridge for learning management systems.
The goal in creating the system was to be able to deliver OER to districts regardless of their technology readiness. Districts who need print can get print and districts who want a digital format have several to choose from.
While this approach has been successful, there are clearly tradeoffs that have implications to the broader OER community. For one, developing a content management system (or even adapting an existing one) is a resource-intensive project. And perhaps more importantly, this multi-platform approach can muddy the capability of downstream users to revise and remix the content.
