Edmodo – offers teachers the ability to post assignments for classes of students to respond to, post to, and communicate with each other. Also, teachers and students can store a wide array of digital content including pictures, podcast, videos, projects, and more. I have used Edmodo in my professional learning with Georgia Master Teachers.
Moodle – LMS that allows you to build courses, lessons, and student-centered activities for free.
Sophia – complimentary tools, technology and community support to help transform the way you teach and thrive in a digital classroom. From homework help to test-taking tips and much more, Sophia’s free resources can help you get up to speed or ahead of the game, whatever your learning style. I have used this platform for 2 years now in my classes. My students like the class wall and I like that I can search lessons by CCGPS standards.