Although basic principles for assessment were considered (explicit criteria, identifying achievements, and gathering verifiable evidence of learning; e.g., Harlen, 2004), there was difficulty in differentiating assessment in the making and testing of the medical mission kits. A pretest provided some diagnostic understandings for targeting students’ learning needs (Athanasou & Lamprianou, 2002), though the program was pre-determined and further differentiation was not included; instead differentiation was left up to the teacher’s initiative in catering for the various learning needs. In a formative assessment way, student outcomes were shown in the conceptual development stages (mathematics and science) within their booklets, however a stronger self-assessment component could have been adopted (e.g., Black & Wiliam 1998). Further advancements in planning for assessment of learning could have included assessment rubrics to locate differentiated outcomes (Hudson, 2005).