A close-up on peer and cross-age tutoring, including definitions, why use, challenges, research finding and implementation strategies. “It is likely that peer and cross-age tutoring have been part of human existence since hunter gatherer times. As Jenkins and Jenkins write, "Tutorial instruction (parents teaching their offspring how to make a fire and to hunt and adolescents instructing younger siblings about edible berries and roots) was probably the first pedagogy among primitive societies".