Resources. About what you can use in your teaching. Resources are created on an open basis, not alone documents (such as texts, pictures, videos or presentations), but also tools (such as applications or devices), and even people you invite to your classes or places your students visit.
Plans. About what you can do in your teaching. There are different level of aggregation proposals, from simple activities of few minutes, to lesson plans and even class schedules for a whole course.
Boards. You can use them to classify and organize the Edu-AREA elements (resources and plans) you are interested in under your desired criteria.
Courses.. Here are the courses you do with your pupils. They are only visible for you and them.
What can you do?
Plan and document your teaching methods 'live'. You may create in advance your classes plan or you can build it along with its development. You can document what you do and what happens in your class adding evidences (photos, videos, documents, etc.), observations and reflections.
Develop your teaching methods. Your pupils can see information and resources you've got in your plan. They can also send answers to the homework.
Register, share and find resources. Resources are available outside Edu-AREA (for example, people you invite). From Edu-AREA you can link them and include its description to ease their discovery.
Create, share and find plans. Plans are really inside Edu-AREA. From Edu-AREA you can edit them connecting the used resources. You can also find plans that other users might have shared.
Classify and curate. Boards may be used to organize resources and plans including its annotations. You can also share them publicly.