"class conducted by" is a perfectly grammatical and valid phrase in written English.
It is especially useful in educational writing, such as when referring to courses of study. For example: "The calculus class conducted by Professor Smith was known for its excellence."
He attended every class conducted by the Ailey dance teachers.
Tells about a class conducted by Howard Ross, a consultant in the data-processing industry.
There he joined in a voice class conducted by Baroness von Campenthausen Basserman.
But this was a marketing class conducted by Ely Dahan, a professor at M.I.T.'s Sloan School of Business.
Visit to a class, conducted by Lieutenant James Kearney, who used to be an assistant professor of French at Fordham.
The writer watched a regular morning men's class, conducted by Brian Shaw, and rehearsals of "La Fille Mal Gardee," "Rituals," and "A Month in the Country".
In 1876 Barber began taking classes conducted by the painter Thomas Eakins at the Pennsylvania Academy of the Fine Arts in Philadelphia.
As a child and a young man the writer attended dancing classes conducted by Miss Barlow.
By John Cheever The New Yorker, November 6, 1937 P. 77 As a child and a young man the writer attended dancing classes conducted by Miss Barlow.
Classes, conducted by Michael Green, a wine consultant, will begin Sept. 27 and continue through Nov. 15 from 6 to 8 30 p.m. at Astra New York, an event space at 979 Third Avenue (59th Street).
Putting down roots in Oakland, she met the Filipina writer Jessica Hagedorn at Third World Communications, a women-artists' collective; she was introduced to the choreographer Paula Moss at dance classes conducted by Halifu Osumare.
