Abstract
Generally, blind people, in particular the congenitally blind, find it difficulty to understand their surroundings. To help them, the computer assisted instruction (CAI) system which gives the blind spatial awareness has already been developed. We have added a task to expand the range of spatial awareness covered by the system. In the task, a user walks around a room where objects are set, and understand the spatial arrangement of the objects. The user arranges blocks on a board to represent the memorized spatial arrangement. Then the system evaluates the block arrangement and outputs the result or correction by synthesized speech. We report the system detail, the task and the result of experiment for blindfolded sighted children by using the system.
