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Many individuals use optics of some sort to facilitate access to visual materials. It is important for the instructor to understand the optics of devices being used; the optics of devices needed; and how to determine optics, distance, and print size to maximize student performance. At the end of this presentation, attendees will:1)Understand the difference between diopters, enlargement factor, and magnification2)Be able to identify the magnification of a telescope with no markings3)Determine the required size materials needed based on of size of print4)Understand the amount of magnification offered by electronic devices5)Understand the difference between Galilean and Keplerian telescopes6)Apply a variety of formulas to determine best magnification, target size, and reading distance to maximize a students access to visual materials.Sandra Stirnweis is a Certified Orientation and Mobility Specialist with over 30 years experience teaching students from infancy through geriatrics, currently employed in the Washington Elementary School District in Phoenix. She did additional coursework in low vision through the Pennsylvania College of optometry. She thinks math is fun! |
