Pretty simple build using wood frame and foam board for the “walls”. The foam also can help insulate and reduce noise too. Me, I might have added a thin sheet of showerboard too so they could become whiteboards. and help keep the foam board from getting dinged on one side. Still a nice build.
https://www.instructables.com/Lightweight-Room-Dividers-a-Temporary-Wall-for-Ren/