A private tutor is a private instructor who teaches a specific educational subject or skill to an individual student or small group of students. There are tutors for all subjects including math, English, Spanish, vocabulary, spelling, science and every subject taught in school. Such attention allows the tutor to improve knowledge or skills far more rapidly than in a classroom setting. Tutors are often privately hired and paid by the student, the student's family or an agency. Many are used for remedial students or others needing special attention; many provide more advanced material for exceptionally capable and highly motivated students. Tutelage is the process of being under the guidance of a tutor.