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Augmenting Visualizations with Physical Models in the Moon-Phases Module

Augmenting Visualizations with Physical Models in the Moon-Phases Module Meytal Hans, Technion - Israel Institute of Technology Yael Kali, Technion - Israel Institute of Technology Yoav Yair, The Open University, Israel. Research Rationale.

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Augmenting Visualizations with Physical Models in the Moon-Phases Module

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  1. Augmenting Visualizations with Physical Models in the Moon-Phases Module Meytal Hans, Technion - Israel Institute of Technology Yael Kali, Technion - Israel Institute of Technology Yoav Yair, The Open University, Israel

  2. Research Rationale • Students have difficulties in understanding the moon phases because: • Requires spatial abilities • Large scale dynamic phenomenon • Involves understanding the phenomenon from multiple perspectives (frames of reference) (e.g.: Mulholland & Ginns, 2007; Nussbaum & Novak, 1976; Callison and Wright , 1993) • Visualizations and physical models can each support learning(e.g.: Hansen et al., 2004; Coyle, Gregory, Luzader, Sadler & Shapiro, 1993; Gazit, Yair & Chen, 2005; Trumper, 2006)

  3. What do we mean by “understanding the moon phases”? Relating multiple perspectives: External view (from space) and internal view (from earth - geocentric)

  4. Visualization and the physical model in the WISE moon-phases

  5. Goals To examine the effect of the Moon Phases module on: • Students’ ability to solve problems regarding the moon phases • Students’ ability to solve general spatial ability problems that require • relating between different frames of reference • Mental rotation (Purdue test) To explore how students develop their understanding of the moon phases and their spatial abilities To explore how students develop their understanding of the moon phases and spatial abilities in this context.

  6. Quantitative findings: Pre-Post comparisons whole sample (N=202)

  7. Quantitative findings: Sub-samples Schools (7th-8th) (N=114) Space club (7th-8th) (N=65) College (N= 14) Basic knowledge Moon phases Sun-rise and sun-set Spatial test 1 Spatial test 2 Basic knowledge Moon phases Sun-rise and sun-set Spatial test 1 Spatial test 2 Basic knowledge Moon phases Sun-rise and sun-set Spatial test 1 Spatial test 2

  8. Stages in the development of understanding of the moon-phases Aha points: 1 - Internal (geocentric) view 2 – Awareness of difference: internal / external views. 3 – Relating internal / external views 4 – Adding relative movement (moon-rise and moon-set)

  9. Learning paths of case-study students (6 pairs) Relative Movement Relating internal / external Awareness internal / external Internal view

  10. Critical factors in learning (reaching aha points) from the visualization • Back and forth transitions between visualization (external view) and physical model (internal view) • Negotiation of understanding between students • Guidance: • Scaffolding guiding questions in module • Teacher as guide

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