1. A computer-implemented method for using educational contexts for learners to adjust processing of search queries in a learner-specific manner, the method comprising: accessing an educational-context data store that identifies, for each learner of a set of learners, a course that the learner is enrolled in, the course being associated with a syllabus; receiving a search query entered by a learner of the set of learners via an interface at an input time, the search query including a query term; searching the educational-context data store to identify the syllabus associated with the course that the learner is enrolled in; identifying a portion of the syllabus corresponding to the input time; determining a weight for a concept based on: the query term; the course that the learner is identified as being enrolled in; and the portion of the syllabus; identifying a content object in a set of content objects based on the determined weight for the concept; and generating a query result that identifies the content object as being responsive to the query.
1. A computer-implemented method for using educational contexts for learners to adjust processing of search queries in a learner-specific manner, the method comprising: accessing an educational-context data store that identifies, for each learner of a set of learners, a course that the learner is enrolled in, the course being associated with a syllabus; receiving a search query entered by a learner of the set of learners via an interface at an input time, the search query including a query term; searching the educational-context data store to identify the syllabus associated with the course that the learner is enrolled in; identifying a portion of the syllabus corresponding to the input time; determining a weight for a concept based on: the query term; the course that the learner is identified as being enrolled in; and the portion of the syllabus; identifying a content object in a set of content objects based on the determined weight for the concept; and generating a query result that identifies the content object as being responsive to the query. 6. The method for using educational contexts for learners to adjust processing of search queries in the learner-specific manner as recited in claim 1 , the method further comprising: determining an order for a plurality of content objects in the set of content objects based on the weight for the concept, the plurality of content objects including the content object, wherein the query result identifies at least some of the plurality of content objects in the determined order.