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Direct linkRau, Martina A.; Aleven, Vincent; Rummel, Nikol – Journal of Educational Psychology, 2015
Research shows that multiple external representations can significantly enhance students' learning. Most of this research has focused on learning with text and 1 additional graphical representation. However, real instructional materials often employ multiple "graphical" representations (MGRs) in addition to text. An important open…
Descriptors: Graphs, Instructional Materials, Instructional Effectiveness, Educational Experiments
Rummel, Nikol; Mullins, Dejana; Spada, Hans – International Journal of Computer-Supported Collaborative Learning, 2012
With the aim to promote students' mathematics learning, we extended the Cognitive Tutor Algebra (CTA), a computer-based tutoring system for high school mathematics, to a collaborative setting. Furthermore we developed a collaboration script to support students' interactions. In an experimental classroom study, we compared three conditions:…
Descriptors: Mathematics Education, Prior Learning, Interaction, Algebra
