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Category: Communicators

Scanning Blackboard.

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--- "DO IT YOURSELF" ENTRY ------- PURPOSE: Scanning blackboard allows students with limited or no communication skills to participate in classroom activities. A 4 foot square board is constructed to handle responses from 4 students. The upper portion of the board contains 4 sets of 4 lights. The student's names are written in this area. The remainder of the board is divided into 12 equal areas in which desired responses to various questions are written. A response switch tailored to each child's needs is connected to the board through a stereo plug. The teacher sets up the board for a particular set of questions and then selects a student to respond. The light above the student's name will light up and the child allows the scanner to go from left to right until it reaches the desired response. The student stops the scanner by activating the switch. The scan rate may be varied from .5 to 3 seconds using a petentiometer. The number of students who can use the board at one time may be increased with minor modifications to the board. Includes diagram. COMMENTS: Prototype device designed by Dr Roy Norris. For further information contact Cerebral Palsy Research Foundation, Rehabilitation Engineering Center, P O Box 8217, Wichita, Kansas 67208. SKILLS REQUIRED: Electrical. AUTHOR: Nelson, R G TITLE: Problem Solving with Rehabilitation Engineering Tech Brief REF: Summer 1977: p 23-26 NARIC CALL NUMBER: 02876 PAGES (including cover): 5 1977.

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