ClassDojo is a free, widely used platform that facilitates school communication through a social media-style interface, allowing teachers to share announcements, photos, videos, and student progress updates. It includes behavior tracking with a points system to encourage positive actions, and parents can join private class groups to stay engaged. Its simple, mobile-friendly design and focus on classroom culture make it accessible for all grade levels. ClassDojo’s active status is confirmed by its widespread use and recent updates in educational communities.