Layering: Showing and Hiding Objects

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Todd Edwards
James Quinlan


All GeoGebra objects are assigned to a layer, which can be made visible or invisible. In this article, the authors highlight this feature by example and suggest four tasks in which layers can be implemented.

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Author Biographies

Todd Edwards, Miami University

Todd Edwards is the co-editor of the North American GeoGebra Journal and Ohio Journal of School Mathematics. He serves as the co-director of the GeoGebra Institute of Ohio. Dr. Edwards' research interests focus on the teaching and learning of school mathematics with technology and writing as a vehicle to learn mathematics at all levels of instruction.

James Quinlan, University of New England

Department of Mathematical Sciences