"in both courses" is a valid phrase and can be used in written English.
For example, "I studied a variety of topics in both courses I attended this semester."
Magasanik continued to teach in both courses until 2010.
Student presentations in both courses will be evaluated.
Students in both courses showed progressive improvement in all performance measures across the several assessment occasions.
In both courses, instructors posted new lessons every week and responded to questions posed by students on the course bulletin board.
A minimum grade of A- in both courses is required for successful completion of the honors requirement.
In both courses we loaned Nokia N900s to every student, and assignment #1 was to replace its autofocus algorithm.
In both the course is similar.
It has been found from computer simulation and full-scale experiments aboard a training ship that the autopilot is robust and has good characteristics in both course keeping and course changing.
A comparison of fabric size indicated that yarn floating caused reduction in both course and wale-wise specimens; in addition, yarn overlapping caused a release in course-wise and shrinkage in wale wise due to tuck.
Miss of yarn caused shrinkage in both course and wale-wise of knitted samples due to drawn closer together yarns by the floats.
By the 1980s bioethics as a discipline was growing, courses were proliferating and increasing the market for bioethics texts, but the marginalization of feminist perspectives persisted in both course texts and bioethics journals.
