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This mixed methods design study explored the effectiveness of hands-on and virtual manipulatives in advancing preservice teachers’ understanding of the algebraic concepts of linear function and slope. The quantitative data analysis suggested that participants benefited from the virtual and hands-on manipulative interventions as to their understanding of linear function and slope. A further qualitative analysis engendered a surprising conclusion: the interventions had nothing to do with preservice teachers’ learning, but provided a context for peer discussion. Based on data from the after-intervention interviews and follow-up questionnaires, the results suggest that peer discourse maybe a more effective strategy in advancing preservice teachers’ grasp of specific points in mathematics.
Xiaobo She, Governors State University
Shirley M. Matteson, Texas Tech University
Kamau Oginga Siwatu, Texas Tech University
Jennifer A. Wilhelm, University of Kentucky