The phrase "a useful course" is correct and usable in written English.
It can be used when referring to a class or program that provides valuable knowledge or skills.
Example: "I found a useful course on digital marketing that helped me improve my online presence."
Alternatives: "an informative course" or "a beneficial course".
This will be a useful course for students who miss taking Elementary Arabic I in the fall since the course is not offered in the spring.
It is a useful course for students in information science, statistics, economics, and the life sciences who don't expect to continue with more advanced math classes.
"My expectations were twofold, on the one hand, well, I'll see if I am able to, then once I know, and I have participated in mixed activities, I'll see if I can create a useful course for our students.
Our hypothesis from the research was that students view ESP as a very useful course, which helps them reach higher communicative competence in their field of study and as a result higher job opportunities in the labor market of Macedonia, as a country aspiring for integration in international organizations such as NATO and EU.
"The Late Henry Moss" may not be its author's best, but it could serve as a useful introductory course in the Themes of Sam Shepard.
I'm not saying that a degree in Folklore and Mythology won't help your daughter land a job, but a gift certificate for a useful vocational course makes a handy present.
It is a useful crash course for the sort of American business traveler -still to be seen in Tokyo, albeit less frequently - who has trouble grasping that things are not done everywhere the way they are at home.
Well-chosen examples and strategically placed exercises support the reader in gaining an understanding of graphs on surfaces and their fascinating applications". The book ends with a useful crash course on the representation theory of finite groups and their relevance to the enumeration of constellations, in the form of an appendix written by Don Zagier.
Ruairi D: Very useful course.
"This is the most useful course I have ever taken.
