These seven papers offer a menu of alternative approaches to apprenticeships and suggests the advantages and disadvantages of each. "Apprenticeship Learning: Principles for Connecting Schools and Work Places" (James Rosenbaum) indicates how fundamental changes in the global economy virtually require improved education of all youth and why teachers and employers are increasingly concerned about preparing youth for work. Some youth apprenticeship models are described and used to infer the essential principles of effective apprenticeships. "School-Based Work Experience" (David Stern) identifies a continuum of work experiences and highlights characteristics of school-based programs that build on work experience. It discusses key components of co-op programs and career academies."Learning at Work" (Stephen and Mary Hamilton) provides a theoretical basis for learning by doing work. It identifies components that underpin work-based learning and describes practices that make classrooms and workplaces more effective learning environments. "Apprenticeship as a Paradigm for Learning" (Sue Berryman) presents a model supported by the research on experience-based education, discusses characteristics of ideal learning environments, describes traditional and cognitive apprenticeships, and discusses some implementation issues. "Guidelines for Effective School-Employer Linkages for Apprenticeship" (Rosenbaum) examines pitfalls of school-employer relationships and considers examples from Germany and Japan that could make more effective linkages between schools and businesses in the United States. "Certification of Work Competencies" (Berryman, Rosenbaum) explores credentialling systems that could pose standards for attainment, help students get recognition for their accomplishments, and connect students to high-quality entry-level occupations. "Conclusions and Implications for Policy and Practice" (Rosenbaum) offers practical approaches to implementing findings and models. A "Commentary" (Richard Kazis) and author biographies are appended. (Contains 184 references.) (YLB)