Empower educators with instructional resources, professional development programs, and online training courses, available at no cost. Discover how institutions of all different sizes, demographics. ClassDojo connects K-12 teachers with families. Free classroom communication, behavior tracking, and student portfolios. Used in 95% of US schools. Why Does CLASS® Matter? Interactions are the strongest predictors of children’s academic, social, and emotional outcomes. The CLASS framework provides a common language to measure and improve interactions. At scale, the CLASS suite supports system-wide quality improvement and workforce development. Can't find your login page? Please ensure your camera is connected and enabled, then refresh the page. Use a private browsing window to sign in. Learn more about using Guest mode. Forgot Password? Not Your Page? Help Browser Check Privacy. Class allows instructors to replicate an in-person classroom experience in an online environment. Built on Zoom. Built for Education. Sign in to ClassLink Username Can't find your login page? Login here.