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van Dijke-Droogers, Marianne; Drijvers, Paul; Bakker, Arthur – International Journal of Science and Mathematics Education, 2022
This paper comprises the results of a design study that aims at developing a theoretically and empirically based learning trajectory on statistical inference for 9th-grade students. Based on theories of informal statistical inference, an 8-step learning trajectory was designed. The trajectory consisted of two similar four step sequences: (1)…
Descriptors: Grade 9, Learning Trajectories, Computer Simulation, Visualization
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Ozdemir, Gokhan – International Journal of Science and Mathematics Education, 2010
This mixed-method research attempted to clarify the role of visuospatial abilities in learning about mineralogy. Various sources of data--including quantitative pre- and postmeasures of spatial visualization and spatial orientation tests and achievement scores on six measures and qualitative unstructured observations, interviews, and field trip…
Descriptors: Field Trips, Mineralogy, Visualization, Spatial Ability