The phrase "a topic covered" is correct and usable in written English.
It can be used when referring to a subject that has been discussed or addressed in a particular context, such as an article, presentation, or course.
Example: "In the seminar, we will explore a topic covered in the previous session to deepen our understanding."
Alternatives: "a subject addressed" or "a theme discussed".
Currently, for example, learning outside the classroom is not a topic covered in initial teacher training.
Consider, for example, the protocol surrounding target selection, a topic covered at length in the journal's second issue.
After the emissions trading laws were defeated and no substantial progress was made at the 2009 Copenhagen climate summit, Rudd made the fateful decision to delay new legislation on carbon pricing and in so doing started a steep and rapid decline in his personal approval rating (a topic covered in the book Power Failure by Phillip Chubb).
A topic covered in documentary.
Perhaps it will be a topic covered in one of the sessions next year.
A topic covered previously by DeSmogBlog, Logan submitted to the Subcommittee that flaring "is getting worse, not better".
If they're all from some decades past, this may indicate a copied essay––even when a topic covers something solely to do with another era, such as hairstyles of the 70s, there should be at least one recent reference from a more up-to-date writer included.
Promoting accountability, investigating corruption and uncovering money laundering was a prevalent topic covered by trainers and journalists at the three-day conference.
Taken as a whole, the topic covered in this paper enables one to develop reliable software for machining the sculptured surface on multi-axis CNC machine.
A full list of all topics covered by the STG/STC program can be found in the program description of Schreuder [ 48].
The conference closes with "NextCon: A Look Back, A Look Ahead," a roundup of topics covered, drinks, and some extra networking time.
