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    Universal graph literacy: understanding how blind and low vision students can satisfy the common core standards with accessible auditory graphs

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    Date
    2013-04-08
    Author
    Davison, Benjamin Kenneth
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    Abstract
    Auditory graphs and active point estimation provide an inexpensive, accessible alternative for low vision and blind K-12 students using number lines and coordinate graphs. In the first phase of this research program, a series of four psychophysics studies demonstrated an interactive auditory number line that enables blind, low vision, and sighted people to find small targets with a laptop, headphones, and a mouse or a keyboard. The Fitts' Law studies showed that, given appropriate auditory feedback, blind people can use a mouse. In addition, auditory feedback can generate target response patterns similar to when people use visual feedback. Phase two introduced SQUARE, a novel method for building accessible alternatives to existing education technologies. The standards-driven and teacher-directed approach generated 17 graphing standards for sixth grade mathematics, all of which emphasized point estimation. It also showed that how only few basic behavioral components are necessary for these graphing problems. The third phase evaluated active point estimation tools in terms of training, classroom situations, and a testing situation. This work shows that students can learn to graph in K-12 environments, regardless of their visual impairment. It also provides several technologies used for graphing, and methods to further develop education accessibility research.
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    http://hdl.handle.net/1853/47621
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    • College of Computing Theses and Dissertations [1156]
    • Georgia Tech Theses and Dissertations [23403]
    • School of Interactive Computing Theses and Dissertations [130]

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