The name Didax comes from the Greek didaktikos, meaning "to teach". We can't think of any more important activity. For over thirty years, we've specialized in helping educators to address individual learning styles and diverse student needs. Since their introduction in the 70's, more teachers have used our Unfix Cubes than any other manipulative in the world. Each year we introduce more innovative hands-on, print, and software tools to make teachers more successful. We serve you from our offices and warehouse in Rowley, Massachusetts on the North Shore of Boston. Our international publishing partner is RIC Publications of Perth, Western Australia. Together we serve teachers all over the globe.