Electronic Travel Aids
Main types
Pathsounder
Mowat Sensor
Sonic glasses
Laser cane
Advantages
Disadvantages
Students should know they are available, their strengths, weaknesses, and characteristics. But good travelers are just as capable without ETA's. Bad travelers can't use them. They are too expensive for most families and schools, and mobility specialists aren't trained to use them (or allowed ethically without advanced training). They also set off the sonic wall of burglar alarms.
Used to teach object permanence to preschoolers or SMI's. OK for deaf blind except the conflict with technology that allows deaf blind to detect voices. OK for wheelchair users.
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