At the same time, the literature suggests that mentor teachers’ mentoring behaviour should fulfil certain requirements, if these benefits are to be achieved. From an extensive research review, Hobson et al. (2009) conclude that the extent to which mentor teachers are able to address mentees’ learning needs is an important factor in the success of mentoring. In their review of a large number of studies of supervision, Glickman and Bey (1990) conclude that “no one supervisory approach is effective for all students” (p. 560). Consequently, mentor teachers need to assure that the mentoring roles they take and the strategies they use to support mentees’ learning are receptive to their mentees’ concerns and suitable for their current stages of development.