Sometimes called peer assessment. Distinct from co-authorship — peer reviewers do not contribute to the work, they evaluate it.
Peer review is the review of one student's work by another student in the same cohort or programme, structured by a rubric and producing concrete written feedback. The reviewer applies the same criteria the formal assessor would apply, often in advance of formal review.
The educational value runs in both directions. The reviewee gets fast, specific feedback that moves the work. The reviewer develops judgement about what good work in the domain looks like — exercising assessment muscles is itself a high-leverage form of practice.
Ewance challenges typically include a peer-review stage in the rubric-feedback layer. Students review each other's deliverables before formal review, applying the same rubric and producing structured feedback. The peer-review stage is also where reviewers calibrate their own work against the broader cohort — a practical form of self-assessment.
The fastest way to know whether challenge-based learning fits you is to ship one.
