Corporate 1943- Formed by the merger of two organisations of the National Education Association in the USA it is an educational leadership organization dedicated to advancing best practices and policies for the success of each learner. GB/366/1437 25/06/2009 Mkklibyz 25/06/2009 Mkklibyz Association for Supervison and Curriculum Development (ASCD); 1943- Association for Supervison and Curriculum Development (ASCD) e0f0953f-42dc-4165-9abf-041b1c7ac0eb