Paris and Mason (1995) describe the pre-apprenticeship or school-to-apprenticeship programs:
Adult apprenticeships are distinct from pre-apprenticeships in that adult apprentices work and receive on-the-job training under a skilled craftworker in a specific trade. Additional training in theoretical and related occupational skills is received through classroom instruction. Adult apprenticeship sponsorship, location, skill requirements, curricula and credentials are all exclusively defined by the industry, trade and workplace. Additionally, apprenticeship leads to a certificate of completion and journeyman status in an occupation such as electrician, carpenter, plumber, and machinist.
In contrast, in the pre-apprenticeship model, formal linkages between secondary education programs and registered apprenticeships are essentially limited to early entry for high school students into established programs. There is commonly little articulation or integration between industry, business and secondary education institutions." (p. 42-43)