Teachers who implement new programs have often been observed to adapt them to suit their own teaching situations. This process of adaptation raises four important issues: (1) Can teachers replicate practices developed elsewhere? (2) Can they be equally effective in doing so? (3) Must adaptation occur for implementation to succeed? and (4) Can…

The Research and Development Exchange (RDx) is a network of regional educational laboratories and university-based research and development centers working to support state and local school improvement efforts. Initiated by the National Institute of Education in 1976, the RDx is composed of eight Regional Exchanges and four central support…