OER Commons
Oer Commons (Open Educational Resources)
OER Commons is a network of resources that have been shared by many different schools, instructors and institutions - and it is all free for you to use! Browse the courses or lesson plans for topics ranging from mathematics to humanities.
OpenSciEd
Open Sci Ed
Access to resources and materials intended to improve science education through the development and implementation of high-quality, freely available science instructional materials.