It is correct and usable in written English.
You can use 'prepare lectures' when referring to preparing speech material or topics for a lecture. For example, "My professor spends a few hours each week preparing lectures for his students."
I helped prepare lectures and led hands-on workshops to teach design and systems thinking.
It was 1984 and my dad, who was head of engineering at the Waterford Regional Technical College, brought home a Commodore 64 so that he could prepare lectures.
This means moving house twice within three months, with no holiday, two jobs, no time to prepare lectures for September and no research.
But Dr. Yu was not yet running a fever, unlike many of his colleagues, and he worked late to prepare lectures for his students.
By October, 1903, he had given up teaching altogether; apparently, the idea of having to prepare lectures and deliver them at a predetermined time was more than he could bear.
While under investigation by the university for some unspecified infraction, he's installed himself in a rented office, where he intends to prepare lectures on "The Eumenides," the third part of the "Oresteia" (yet another story built on the back of a love triangle).
It's good to be a full-time researcher, without the added burden of having to prepare lecture courses and so on, but I do miss teaching students.
I was wondering what about preparing lectures?
He was nonetheless a committed teacher who prepared lectures and classes with great care.
Sanders preferred to spend most of his professional time preparing lectures and interacting with students.
Or, to what degree has preparing lectures, for example, helped to develop books you have written?
