If you improve how well teachers connect with students, children achieve more now and for the rest of their lives. Thata s the promise of the Classroom Assessment Scoring System(r). Teachstone is delivering on that promise by bringing CLASS(r) observations and professional development solutions to organizations and classrooms nationwide and around the globe. With 32 states implementing CLASS(r), Teachstone has trained and certified over 28,000 CLASS(r) observers and reached over six million children. Teachstone provides organizations with the tools they need to help teachers make a difference one interaction at a time. "