I'm a fan of Learning Management Systems. A good LMS provides teachers and learners with the ability to curate and house content in a convenient, online location. Learners gain access to relevant content and information and may easily connect with members of the classroom community.
Robert Fulgham reminds us to "share everything" in his book/poem, "All I Really Need to Know I Learned in Kindergarten." Yet, as we continue to progress and talk about the need for Open Educational Resources that are free, an increasing number of schools are moving to paid LMS systems that require school specific usernames and passwords.
Teachers and students are creating amazing lessons. Locking up this work behind walls hidden inside a password protected LMS makes no sense. This practice forces many teachers to reinvent the wheel and continue to hide inside the walls of their classrooms. 21st Century Teaching and Learning emphasizes the need to tear down these walls and connect with one another. I encourage schools and educators to use platforms that encourage the sharing of educational content so that everyone may benefit from lessons created together.