A school-based apprenticeship usually combines the final 2 years of school with paid part-time work. This enables you to finish the first year of your trade whilst completing the HSC. You would then go into the second year of a full time apprenticeship, usually with the same employer, once you leave school.
A school-based traineeship is fully completed within your final 2 years at school, providing you with the HSC, a VET qualification, a Certificate of Proficiency and paid experience in the workplace.
Both involve a combination of paid work and final learning and are contractual agreements lodged with the Department of Industry,