sandwich course 
noun British
A training course with alternate periods of formal instruction and practical experience.You'll likely do either a three-year degree leading to a Bachelor of Arts or Bachelor of Science or a four-year sandwich course which includes a year in industry or a year abroad....
- The four-year sandwich course has been developed with specialised police forces in the area.
- Similarly they will be able to take up work placements which are part of a sandwich course or to undertake internship placements without the need to obtain permission from Work Permits.