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Science and Mathematics Education Commons

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Full-Text Articles in Science and Mathematics Education

Increasing Senior High School Students' Mathematical Problem-Solving Skills Through Improving Their Spatial Visualization Skills By Learning And Practicing Three-Dimensional Dynamic Geometry With Cabri 3d, Nurul Yaqin Jul 2020

Increasing Senior High School Students' Mathematical Problem-Solving Skills Through Improving Their Spatial Visualization Skills By Learning And Practicing Three-Dimensional Dynamic Geometry With Cabri 3d, Nurul Yaqin

Doctoral Dissertations

Problem-solving is one of the standards of mathematics processes developed by the National Council of Teachers of Mathematics. Many research studies indicated that there was a relationship between mathematics achievement and spatial visualization skills. But the research results still didn’t indicate whether or not there was a causal mediation relationship between the achievement of learning-and-practicing three-dimensional geometry and mathematical problem-solving skills mediated by spatial visualization skills. Therefore, it’s still necessary for us to specifically investigate whether or not spatial visualization skills can be a medial factor between the increase of mathematical problem-solving skills and the effects of learning and practicing …


Building Capacity For Academically Productive Talk: The Development Of Teacher Leaders In Science Professional Development, Renee Affolter Jul 2020

Building Capacity For Academically Productive Talk: The Development Of Teacher Leaders In Science Professional Development, Renee Affolter

Doctoral Dissertations

Despite decades of research on the type of classroom dialogue that supports collaborative student sensemaking and professional development efforts to support such dialogue, opportunities for students to incrementally deepen their understanding of science ideas through engagement in science practices and to engage in complex reasoning and argumentation through classroom talk is limited in most K-12 science classrooms (Driver, Newton, & Osborne, 2000; Lemke, 1990; Michaels, Shouse, & Schweingruber, 2008; Mortimer & Scott, 2003; C. O’Connor, Michaels, & Chapin, 2015; Reinsvold & Cochran, 2011; Scott, Mortimer, & Aguiar, 2006; Weiss, Pasley, Smith., Banilower, and Heck, 2003; Wilson, Schweingruber, & Nielsen, 2015). …