A Head Start training program director designed a practicum to provide a short-term, cost-effective training program for community child care providers interested in earning the Child Development Associate (CDA) credential. In addition, a training-of-trainers component was developed for program supervisors interested in serving as advisors to practitioners working in their programs. Developed were a three-credit college-based course for practitioners and a simultaneous one-credit college-based course for supervisor/advisors, based on the CDA competency assessment system. Concrete, experiential activities, within a collaborative, socially interactive context were designed to enable transfer of learning to participants' work settings. Evaluation data indicated that practicum outcomes were positive. All participants reported that they had applied newly acquired knowledge in their work site. A high percentage of participating practitioners earned their CDA credential within 3 months after the training program, and a high percentage of the supervisor/advisors successfully assisted their candidates in becoming credentialled. Related materials are appended. (RH)