'serving as a teacher' is a grammatically correct phrase and can be used in written English.
For example: She found great reward in serving as a teacher for her community's youth.
But one of the other children and Chantal Dumas, a former school secretary who has been serving as a teacher at Frades, helped visitors track her down.
Because you are older and have more experience, you will likely wind up serving as a teacher and mentor of your younger co-workers.
Doug took great pleasure in being a father and husband in addition to running the Doug Stern Swimming Clinic and serving as a teacher and swimming coach at Evander Child's High School in the Bronx for 27 years, where he won coach of the year in 1972.
The network, he said, is now filming a show in which Tony Danza, following a longstanding interest, is serving as a teacher in a public high school in Philadelphia, and also plans a show focused on Kirstie Alley and her real-life struggles to control her weight (as opposed to the fictional "Fat Actress," in which she starred on Showtime).
Richard was a public school educator for 34 years, serving as a teacher, principal, and superintendent.
She moved to India in 1929, serving as a teacher, and later a principal, at a high school for girls in Calcutta.
Between 1977 and 1984 she served as a teacher in Delhi.
He'd served as a teacher and Nazi administrator, but seemed to have played a dangerous double game.
After fleeing into exile, he studied at the teacher training college in Butare, Rwanda, and served as a teacher and part-time university lecturer.
He was also a volunteer with Meals on Wheels in Summit, the Rehab Center at Overlook Hospital and served as a teacher for the ESL-Connection at the Summit YMCA.
He received his undergraduate and master's degrees from New York University, and before becoming Recreation Commissioner, he served as a teacher and coach at Mt. Vernon Edison High School.
