The phrase "a classmate in a" is correct and usable in written English.
It can be used when referring to a classmate within a specific context, such as a subject, activity, or group.
Example: "I was surprised to see a classmate in a different major during the event."
Alternatives: "a peer in a" or "a fellow student in a".
Dajuan Wagner, who drew national attention after he scored 100 points in a game for Camden High School last January, has been found guilty of simple assault and was sentenced to one year's probation for punching a classmate in a school hallway a month earlier.
I just loved the way it sounded, that plain Fanshawe, with its forceful, uncluttered, Waspy, masculine brio like something you'd call a classmate in a good preparatory school.
One of three teenagers charged with binding, beating and sexually assaulting a classmate in a restroom in a Queens high school in 1999 pleaded guilty yesterday, telling a judge, "I want to take responsibility for my actions".
In the last month, an 8-year-old boy took a gun to his elementary school classroom in Fort Lauderdale, and a sophomore at Dillard High School in Fort Lauderdale was charged in the shooting death of a classmate in a school corridor.
T included a classmate in a drawing at school.
In early 2006, The Smoking Gun published a damning report revealing that many particularly gruesome details of the memoir and its sequel, My Friend Leonard, had been fabricated, including a violent clash with the police, a three-month prison stint and his scapegoating by the cops for the death of a classmate in a car accident.
Latino high school students in Northern California were given mock "deportation letters" by a classmate in an incident that authorities believe was tied to the election.
He had been bullied at school, and poked with a needle by a classmate in 2004.
"It's more intriguing to me," he said, standing with a classmate in front of a huge, luminous Jeff Wall photograph.
In the years right after Jaycee's abduction, said Ms. Gooch, the missing girl was still a peer, a classmate in jeopardy just out of reach.
He got another one in a fight with a classmate, in eighth grade, and still another as a high-school sophomore, when he was struck by a batted baseball while standing on the pitcher's mound.
