Search
Program Calendar
Browse By Day
Browse By Time
Browse By Person
Browse By Room
Browse By Unit
Browse By Session Type
Search Tips
What to do in Chicago
Personal Schedule
Sign In
X (Twitter)
Scientists use multiple external representations (MER) as advance knowledge organizers to communicate their claims about scientific phenomena. In science classrooms, where representational practices are adopted as fundamental tools, students need to learn organizing knowledge in the forms of representations that reflect their understanding, similar to that of scientists. However, still little is known about how learners organize knowledge with MER. In this study, the learners used a web- based hypertext platform that included three representational modes to organize knowledge on nuclear energy topic. The results indicated that Wiki and ConceptMap modes were both more utilized and had higher conceptual and technical qualities than pictorial representations. These two modes were also better means to create a knowledge network. Implications are discussed.