TUCSON, Ariz.--(BUSINESS WIRE)--Learning A-Z, a Cambium Learning Group brand, announces that its renowned literacy solutions, Foundations A-Z® and Raz-Plus®, have earned recognition from the Colorado Department of Education as approved supplemental programming for developing reading competency. Both solutions have been officially recommended to support Colorado schools in meeting the diverse literacy needs of their students. Understanding the importance of tailored instruction, Foundations A-Z