Division on Visual Impairments

DVI Quarterly Volume 58(1)

A quarterly newsletter from the Council for Exceptional Children's Division on Visual Impairments containing practitioner tips for Teachers of Students with Visual Impairments, Certified Orientation and Mobility Specialists, and other professionals.

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persuasive summary. Model how to ask questions of the student presenters. I see that your data suggest, xyz, did anyone else find that? How did you determine….. Which text materials did you use to support your findings? Evaluate: Review student poster presentations procedures, diagrams, data, and conclusion. Students question each other during presentations Students explain and justify their findings with evidence. Sound station materials Tuning forks Safety caution: tuning forks should be struck on the bottoms of shoes or other hard rubber surface NOT on the ground or desk tops; they might shatter. Assorted metal bowls, metal spoons, paint brush, wooden spoons, plastic spoons –Students should strike the bowls and listen to the sounds. Toy musical instruments, xylophone, cymbals, maracas, etc. 6 long neck glass soda pop bottles with varied amounts of water in each (food coloring in the water may assist in seeing the levels), metal spoons, wooden spoons Safety caution: glass bottles may break if struck too hard. Close monitoring will be necessary. Meter sticks- hold one end of the meter stick firmly on the table and extend the rest of the stick off of the table. Twang the end hanging off of the table and listen. Move the stick while it is vibrating to change the pitch. Stethoscopes and prepackaged alcohol wipes. Safety caution: students must wipe the ear buds of the stethoscopes after each use. Assorted sizes of rubber bands, assorted sizes of containers (metal and plastic and cardboard). Sets of disposable ear plugs Safety caution: ear plugs are to be used only once and then Set of hand bells with different pitches Plastic bottles each filled with a different substance such as: sand, marbles, metal washers, un-popped popcorn. Kitchen timers, shoeboxes, newspaper, zipper bags of water. Listen to the timer then try it inside of the shoebox, stuff the box with newspaper and re try, hold the timer under a bag of water and retry. The goal is to discover that sound travels best through solids, then liquids, then air Plastic cups strung together with lengths of string. One person holds a cup to their ear, and the other person holds their cup Dr. Margilee P. Hilson • The Ohio State University • Autumn Semester 2012

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