From the Creative Commons Blog:
The search app pulls in data from the Learning Registry and works within any Learning Tools Interoperability (LTI) compliant Learning Management System.
The Open Education Search App enables educators and other users within these districts to search for and assign OER directly within an LMS.
Current search filters include subject, grade, topic, and individual standard (eg. Common Core, NGSS, Texas TEKS). Information about the CC license status of the resource is also displayed.
Learn More, Read the Complete Blog Post