4. The recommender system according to claim 1 , wherein the at least one attribute associated with respective predecessor students of the plurality of predecessor students further includes assessment data indicating a level of performance in association with the at least one educational resource used by the predecessor student, and the predecessor students involved in the mapping have assessment data indicating a level of performance that exceeds a pre-selected threshold.
4. The recommender system according to claim 1 , wherein the at least one attribute associated with respective predecessor students of the plurality of predecessor students further includes assessment data indicating a level of performance in association with the at least one educational resource used by the predecessor student, and the predecessor students involved in the mapping have assessment data indicating a level of performance that exceeds a pre-selected threshold. 5. The recommender system in accordance with claim 4 , wherein the clustering is performed only on the predecessor students having assessment data indicating a level of performance that exceeds a pre-selected threshold.